{"id":7783,"date":"2025-06-17T11:03:07","date_gmt":"2025-06-17T09:03:07","guid":{"rendered":"https:\/\/prosteit.pl\/?p=7783"},"modified":"2025-06-17T12:08:37","modified_gmt":"2025-06-17T10:08:37","slug":"data-security-in-raid-company-what-is-it","status":"publish","type":"post","link":"https:\/\/prosteit.pl\/en\/data-security-in-raid-company-what-is-it\/","title":{"rendered":"Corporate Data Security 2025: RAID \u2013 What is it and How to Use It?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"7783\" class=\"elementor elementor-7783\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-754a204 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"754a204\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-181fa4f\" data-id=\"181fa4f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2fb5057d elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"2fb5057d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"130\" data-end=\"491\">Imagine running a company where all your most important data \u2013 invoices, contracts, projects, customer documents \u2013 are stored on one computer. Everything works smoothly\u2026 until one day the hard drive simply <strong data-start=\"369\" data-end=\"394\">refuses to obey<\/strong>. Sound familiar? Unfortunately, this is one of the most common nightmares for small and medium-sized business owners.<\/p><p data-start=\"493\" data-end=\"820\">That is why it is worth knowing the concept <strong data-start=\"530\" data-end=\"538\">RAID<\/strong> - technology that allows <strong data-start=\"568\" data-end=\"597\">protect data from loss<\/strong>, increase their availability and minimize downtime. Although it may sound like something reserved for large corporations, in reality <strong data-start=\"734\" data-end=\"819\">RAID is also available and useful in small businesses and even in the home office<\/strong>.<\/p><p data-start=\"822\" data-end=\"849\">In this article you will learn:<\/p><ul data-start=\"850\" data-end=\"1149\"><li data-start=\"850\" data-end=\"942\"><p data-start=\"852\" data-end=\"942\"><strong data-start=\"852\" data-end=\"893\">\u2022 What exactly is <a href=\"https:\/\/pl.wikipedia.org\/wiki\/RAID\" target=\"_blank\" rel=\"noopener\">RAID<\/a> and how it works<\/strong>, even if you&#039;ve never heard of it before<\/p><\/li><li data-start=\"943\" data-end=\"988\"><p data-start=\"945\" data-end=\"988\">\u2022 What are they <strong data-start=\"954\" data-end=\"970\">RAID types<\/strong> and how do they differ<\/p><\/li><li data-start=\"989\" data-end=\"1057\"><p data-start=\"991\" data-end=\"1057\"><strong data-start=\"991\" data-end=\"1013\">\u2022 When RAID makes sense<\/strong>, and when is it worth choosing other solutions<\/p><\/li><li data-start=\"1058\" data-end=\"1149\"><p data-start=\"1060\" data-end=\"1149\">\u2022 How to avoid the most common mistakes and implement RAID painlessly, even without your own IT department<\/p><\/li><\/ul><p data-start=\"1151\" data-end=\"1292\">If you want to understand, <strong data-start=\"1175\" data-end=\"1208\">how to protect your data better<\/strong>, without getting bored by technical jargon \u2013 you&#039;re in the right place. Let&#039;s get started.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c96570 elementor-widget elementor-widget-image\" data-id=\"3c96570\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1925\" height=\"722\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/raid-co-to-proste-it-infomratyk-firma.jpg\" class=\"attachment-full size-full wp-image-7790\" alt=\"What is RAID. Data security in the company, o\u017car\u00f3w mazowiecki IT for companies\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/raid-co-to-proste-it-infomratyk-firma.jpg 1925w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/raid-co-to-proste-it-infomratyk-firma-300x113.jpg 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/raid-co-to-proste-it-infomratyk-firma-1024x384.jpg 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/raid-co-to-proste-it-infomratyk-firma-768x288.jpg 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/raid-co-to-proste-it-infomratyk-firma-1536x576.jpg 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/raid-co-to-proste-it-infomratyk-firma-18x7.jpg 18w\" sizes=\"(max-width: 1925px) 100vw, 1925px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-398e064 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"398e064\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c1a1168\" data-id=\"c1a1168\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-020273b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"020273b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-f285af3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f285af3\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6899064\" data-id=\"6899064\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2a8574e elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"2a8574e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"137\" data-end=\"200\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">RAID in simple words \u2013 what is it and where did it come from?<\/span><\/h2>\n<p data-start=\"202\" data-end=\"367\"><strong data-start=\"202\" data-end=\"210\">RAID<\/strong> is an abbreviation of the English phrase <strong data-start=\"243\" data-end=\"283\">Redundant Array of Independent Disks<\/strong>, That is <em data-start=\"291\" data-end=\"331\">Redundant Array of Independent Disks<\/em>. Sounds technical? Let us explain.<\/p>\n<p data-start=\"369\" data-end=\"737\">In simple terms: RAID is a way of combining several <a href=\"https:\/\/prosteit.pl\/en\/nvme-ssd-or-hdd-choosing-hardware-for-a-company-computer\/\">hard drives<\/a> into one logical system that <strong data-start=\"462\" data-end=\"526\">increases data security, performance, or both<\/strong>. Instead of relying on a single disk that can fail at any time, RAID creates an array\u2014a group of disks that work together. This allows data to be stored in a more fault-tolerant manner.<\/p>\n<h3 data-start=\"739\" data-end=\"766\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Where did the idea for RAID come from?<\/span><\/h3>\n<p data-start=\"768\" data-end=\"1184\">RAID was developed in the 1980s at the University of California, Berkeley. The goal was to create a solution that would allow <strong data-start=\"888\" data-end=\"999\">increasing the reliability of data storage without the need to use expensive, industrial systems<\/strong>. Initially, RAID was used in server rooms and data centers, but today \u2013 thanks to the drop in disk prices \u2013 it has also become available to small businesses, offices, and even home users.<\/p>\n<p data-start=\"1235\" data-end=\"1727\">Imagine that your data is valuable documents, and each hard drive is a drawer in a metal cabinet. If you have only one drawer and it breaks, you lose everything. But if the documents are distributed across several drawers in a clever way (e.g. each copy goes to two different drawers), you have a better chance of recovering them in the event of a failure. RAID is such an intelligent &quot;document cabinet&quot;, designed to <strong data-start=\"1666\" data-end=\"1726\">even if one part fails - you will not lose the whole<\/strong>.<\/p>\n<p data-start=\"1756\" data-end=\"1857\">RAID is not something you \u201csee\u201d in your daily work \u2013 it works in the background. But its role is crucial:<\/p>\n<ul data-start=\"1858\" data-end=\"2072\">\n<li data-start=\"1858\" data-end=\"1911\">\n<p data-start=\"1860\" data-end=\"1911\">\u2022 Increases <strong data-start=\"1869\" data-end=\"1885\">reliability<\/strong> (because the data is redundant)<\/p>\n<\/li>\n<li data-start=\"1912\" data-end=\"1987\">\n<p data-start=\"1914\" data-end=\"1987\">\u2022 Can improve <strong data-start=\"1928\" data-end=\"1941\">efficiency<\/strong>, because several disks can work simultaneously<\/p>\n<\/li>\n<li data-start=\"1988\" data-end=\"2072\">\n<p data-start=\"1990\" data-end=\"2072\">\u2022 It allows you to <strong data-start=\"2001\" data-end=\"2025\">business continuity<\/strong>, even if one of the disks stops working<\/p>\n<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8db627 elementor-widget elementor-widget-image\" data-id=\"f8db627\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1640\" height=\"1093\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/it-security-bezpieczenstwo-it.jpg\" class=\"attachment-full size-full wp-image-7793\" alt=\"IT for companies in O\u017car\u00f3w Mazowiecki and surroundings, data security in the company\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/it-security-bezpieczenstwo-it.jpg 1640w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/it-security-bezpieczenstwo-it-300x200.jpg 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/it-security-bezpieczenstwo-it-1024x682.jpg 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/it-security-bezpieczenstwo-it-768x512.jpg 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/it-security-bezpieczenstwo-it-1536x1024.jpg 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/it-security-bezpieczenstwo-it-18x12.jpg 18w\" sizes=\"(max-width: 1640px) 100vw, 1640px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f637e9d elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"f637e9d\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"dlaczegoexcel\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"225\" data-end=\"289\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">Why RAID is important \u2013 real threats in companies<\/span><\/h2><p data-start=\"291\" data-end=\"541\">Many companies \u2013 especially smaller ones \u2013 put off the issue of data security \u201cuntil later\u201d. After all, <em data-start=\"391\" data-end=\"426\">&quot;nothing has happened to us yet&quot;<\/em>. The problem is that <strong data-start=\"446\" data-end=\"469\">when it happens<\/strong>, the consequences can be very costly \u2013 and it&#039;s not just about losing files.<\/p><h3 data-start=\"543\" data-end=\"572\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">What could go wrong?<\/span><\/h3><p data-start=\"574\" data-end=\"644\">Here are the most common scenarios we encounter in small businesses:<\/p><ul data-start=\"646\" data-end=\"1104\"><li data-start=\"646\" data-end=\"784\"><p data-start=\"648\" data-end=\"784\"><strong data-start=\"648\" data-end=\"673\">\u2022 <a href=\"https:\/\/prosteit.pl\/en\/computer-failure-in-the-company-it-help-for-companies\/\">Disk failure<\/a> hard<\/strong> \u2013 storage media, even new ones, can fail without warning. Cheap consumer drives are particularly risky.<\/p><\/li><li data-start=\"785\" data-end=\"883\"><p data-start=\"787\" data-end=\"883\"><strong data-start=\"787\" data-end=\"802\">\u2022 Human error<\/strong> \u2013 accidental deletion of files, overwriting of documents, incorrect hardware configuration.<\/p><\/li><li data-start=\"884\" data-end=\"984\"><p data-start=\"886\" data-end=\"984\"><strong data-start=\"886\" data-end=\"920\">\u2022 Power outage or surge<\/strong> \u2013 may damage the data stored on the disks or even the hardware itself.<\/p><\/li><li data-start=\"985\" data-end=\"1104\"><p data-start=\"987\" data-end=\"1104\"><strong data-start=\"987\" data-end=\"1007\">\u2022 Lack of awareness<\/strong> - many companies do not know that <em data-start=\"1033\" data-end=\"1103\">RAID is not a luxury, but a form of basic data protection.<\/em>.<\/p><\/li><\/ul><p data-start=\"1106\" data-end=\"1295\">For companies (especially SMEs), even a one-day downtime can mean serious losses: unserved customers, lost orders, and in extreme cases \u2013 liability for the loss of contractors&#039; data.<\/p><h3 data-start=\"1297\" data-end=\"1337\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID as a \u201csafety net\u201d<\/span><\/h3><p data-start=\"1339\" data-end=\"1634\">RAID is not a cure-all, but it works as <strong data-start=\"1398\" data-end=\"1424\">safety net<\/strong>, which protects your company from the effects of disk failures. Depending on the configuration, it can allow you to continue working even if one of the disks fails - without the need for immediate intervention.<\/p><p data-start=\"1636\" data-end=\"1858\">And most importantly \u2013 RAID solutions are available today <strong data-start=\"1691\" data-end=\"1749\">without having to invest in expensive server equipment<\/strong>. Even a simple NAS server with the right configuration can significantly increase the security of corporate data.<\/p><blockquote data-start=\"1860\" data-end=\"2082\"><p data-start=\"1862\" data-end=\"2082\">If you want to take care of your company&#039;s data and avoid costly failures, the team <strong data-start=\"1939\" data-end=\"1951\">SimpleIT<\/strong> can help you select and configure RAID tailored to your real needs \u2013 Simple solutions, extraordinary effects.<\/p><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-993d926 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"993d926\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-324a789\" data-id=\"324a789\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-aa1ee36 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"aa1ee36\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"316\" data-end=\"364\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">RAID Types \u2013 Which Option for Whom?<\/span><\/h2><p data-start=\"366\" data-end=\"656\">RAID technology is not one, but <strong data-start=\"401\" data-end=\"427\">a whole family of solutions<\/strong>. Different RAID variants offer different levels of security, performance, and cost. Therefore, before implementing, it is important to understand the differences between the various configurations and <strong data-start=\"604\" data-end=\"655\">which RAID type is best for your business<\/strong>.<\/p><h3 data-start=\"658\" data-end=\"705\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID 0 \u2013 Speed at the expense of security<\/span><\/h3><p data-start=\"707\" data-end=\"996\">RAID 0 combines two or more disks into one logical system, dividing data into pieces and writing them in parallel. The effect? <strong data-start=\"824\" data-end=\"848\">Increased efficiency<\/strong> \u2013 the system reads and writes data faster. But note: <strong data-start=\"905\" data-end=\"946\">RAID 0 does not offer any redundancy<\/strong>. One disk failure = loss of all data.<\/p><p data-start=\"998\" data-end=\"1193\">\ud83d\udd39 <strong data-start=\"1001\" data-end=\"1012\">Advantages:<\/strong> high efficiency<br data-start=\"1029\" data-end=\"1032\" \/>\ud83d\udd39 <strong data-start=\"1035\" data-end=\"1044\">Defects:<\/strong> no data protection whatsoever<br data-start=\"1078\" data-end=\"1081\" \/>\ud83d\udd39 <strong data-start=\"1084\" data-end=\"1097\">For whom:<\/strong> users who require performance but have an independent backup (e.g. video editors, graphic designers)<\/p><h3 data-start=\"1200\" data-end=\"1233\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID 1 - Mirror Image<\/span><\/h3><p data-start=\"1235\" data-end=\"1420\">RAID 1 creates <strong data-start=\"1249\" data-end=\"1291\">exact copy of data on two disks<\/strong>. If one fails, the other takes over. This is one of the simplest and most commonly used matrices in small companies.<\/p><p data-start=\"1422\" data-end=\"1679\">\ud83d\udd39 <strong data-start=\"1425\" data-end=\"1436\">Advantages:<\/strong> high data protection, simplicity of implementation<br data-start=\"1478\" data-end=\"1481\" \/>\ud83d\udd39 <strong data-start=\"1484\" data-end=\"1493\">Defects:<\/strong> cost - half of the space is &quot;wasted&quot; on copy<br data-start=\"1546\" data-end=\"1549\" \/>\ud83d\udd39 <strong data-start=\"1552\" data-end=\"1565\">For whom:<\/strong> office companies, law firms, medical practices \u2013 where it counts <strong data-start=\"1630\" data-end=\"1655\">data security<\/strong> without unnecessary complications<\/p><h3 data-start=\"1686\" data-end=\"1750\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID 5 \u2013 a compromise between performance and security<\/span><\/h3><p data-start=\"1752\" data-end=\"2053\">RAID 5 is a solution that allows you to combine <strong data-start=\"1798\" data-end=\"1867\">performance, protection and efficient use of disk space<\/strong>. Requires a minimum of three disks \u2013 data is distributed, and the information needed to recreate it is saved as parity. If one disk fails, the system continues to operate.<\/p><p data-start=\"2055\" data-end=\"2265\">\ud83d\udd39 <strong data-start=\"2058\" data-end=\"2069\">Advantages:<\/strong> balance between protection, performance and cost<br data-start=\"2118\" data-end=\"2121\" \/>\ud83d\udd39 <strong data-start=\"2124\" data-end=\"2133\">Defects:<\/strong> slower recovery after a crash<br data-start=\"2174\" data-end=\"2177\" \/>\ud83d\udd39 <strong data-start=\"2180\" data-end=\"2193\">For whom:<\/strong> small companies with shared files, e.g. architects, advertising agencies<\/p><h3 data-start=\"2272\" data-end=\"2325\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID 6 \u2013 more security, more disks<\/span><\/h3><p data-start=\"2327\" data-end=\"2564\">RAID 6 works like RAID 5 but saves <strong data-start=\"2366\" data-end=\"2396\">additional parity data<\/strong>, so it can withstand <strong data-start=\"2426\" data-end=\"2462\">failure of two disks at the same time<\/strong>. This provides a greater sense of security, but requires more disks and slows down write operations somewhat.<\/p><p data-start=\"2566\" data-end=\"2805\">\ud83d\udd39 <strong data-start=\"2569\" data-end=\"2580\">Advantages:<\/strong> very high failure resistance<br data-start=\"2614\" data-end=\"2617\" \/>\ud83d\udd39 <strong data-start=\"2620\" data-end=\"2629\">Defects:<\/strong> greater hardware requirements and decreased write performance<br data-start=\"2684\" data-end=\"2687\" \/>\ud83d\udd39 <strong data-start=\"2690\" data-end=\"2703\">For whom:<\/strong> companies that cannot afford downtime or data loss (e.g. law firms, accounting offices)<\/p><h3 data-start=\"2812\" data-end=\"2874\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID 10 (1+0) \u2013 performance and security, but at a price<\/span><\/h3><p data-start=\"2876\" data-end=\"3058\">RAID 10 combines the advantages of RAID 0 and RAID 1. Data is simultaneously <strong data-start=\"2935\" data-end=\"2960\">broken and copied<\/strong>, which provides both high performance and fault tolerance. Requires a minimum of four drives.<\/p><p data-start=\"3060\" data-end=\"3267\">\ud83d\udd39 <strong data-start=\"3063\" data-end=\"3074\">Advantages:<\/strong> fast acting and high resistance<br data-start=\"3109\" data-end=\"3112\" \/>\ud83d\udd39 <strong data-start=\"3115\" data-end=\"3124\">Defects:<\/strong> cost - half of the space is reserved for copies<br data-start=\"3179\" data-end=\"3182\" \/>\ud83d\udd39 <strong data-start=\"3185\" data-end=\"3198\">For whom:<\/strong> companies with intensive work on data and a budget for solid solutions<\/p><h3 data-start=\"3274\" data-end=\"3322\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID 2 and RAID 3 \u2013 less frequently chosen solutions<\/span><\/h3><p data-start=\"3324\" data-end=\"3531\">RAID 2 and RAID 3 are configurations that were used mainly in theory or very specialized equipment. Today they are practically <strong data-start=\"3457\" data-end=\"3478\">unused<\/strong> and not supported by modern RAID controllers.<\/p><ul data-start=\"3533\" data-end=\"3758\"><li data-start=\"3533\" data-end=\"3624\"><p data-start=\"3535\" data-end=\"3624\"><strong data-start=\"3535\" data-end=\"3545\">\u2022 RAID2<\/strong> used error correction (ECC) on separate disks \u2013 expensive and complex.<\/p><\/li><li data-start=\"3625\" data-end=\"3758\"><p data-start=\"3627\" data-end=\"3758\"><strong data-start=\"3627\" data-end=\"3637\">\u2022 RAID3<\/strong> divided data into bytes and used a single disk for parity \u2013 efficient for large files, but poor for many small ones.<\/p><\/li><\/ul><p data-start=\"3760\" data-end=\"3956\">\ud83d\udccc <strong data-start=\"3763\" data-end=\"3782\">Worth knowing:<\/strong> These configurations are educational today and not recommended for use in businesses. Focus on RAID 1, 5, 6 or 10 \u2013 these are the most commonly used and best supported.<\/p><h3 data-start=\"289\" data-end=\"342\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID Type Comparison<\/span><\/h3><div><div tabindex=\"-1\"><table data-start=\"344\" data-end=\"2271\"><thead data-start=\"344\" data-end=\"494\"><tr data-start=\"344\" data-end=\"494\"><th data-start=\"344\" data-end=\"359\" data-col-size=\"sm\"><strong data-start=\"346\" data-end=\"358\">RAID type<\/strong><\/th><th data-start=\"359\" data-end=\"389\" data-col-size=\"sm\"><strong data-start=\"361\" data-end=\"388\">Minimum number of disks<\/strong><\/th><th data-start=\"389\" data-end=\"410\" data-col-size=\"md\"><strong data-start=\"391\" data-end=\"409\">Data protection<\/strong><\/th><th data-start=\"410\" data-end=\"441\" data-col-size=\"md\"><strong data-start=\"412\" data-end=\"440\">Performance (read\/write)<\/strong><\/th><th data-start=\"441\" data-end=\"471\" data-col-size=\"sm\"><strong data-start=\"443\" data-end=\"470\">Space efficiency<\/strong><\/th><th data-start=\"471\" data-end=\"494\" data-col-size=\"md\"><strong data-start=\"473\" data-end=\"492\">Suitable for<\/strong><\/th><\/tr><\/thead><tbody data-start=\"648\" data-end=\"2271\"><tr data-start=\"648\" data-end=\"844\"><td data-start=\"648\" data-end=\"663\" data-col-size=\"sm\"><strong data-start=\"650\" data-end=\"660\">RAID0<\/strong><\/td><td data-col-size=\"sm\" data-start=\"663\" data-end=\"694\">2<\/td><td data-col-size=\"md\" data-start=\"694\" data-end=\"726\">No - failure = data loss<\/td><td data-col-size=\"md\" data-start=\"726\" data-end=\"759\">Very fast \/ fast<\/td><td data-col-size=\"sm\" data-start=\"759\" data-end=\"789\">100%<\/td><td data-col-size=\"md\" data-start=\"789\" data-end=\"844\">Temporary work, graphic design, video editing<\/td><\/tr><tr data-start=\"845\" data-end=\"1085\"><td data-start=\"845\" data-end=\"860\" data-col-size=\"sm\"><strong data-start=\"847\" data-end=\"857\">RAID1<\/strong><\/td><td data-col-size=\"sm\" data-start=\"860\" data-end=\"891\">2<\/td><td data-col-size=\"md\" data-start=\"891\" data-end=\"947\">Full mirroring (1 failure = no data loss)<\/td><td data-col-size=\"md\" data-start=\"947\" data-end=\"979\">Medium\/slower write<\/td><td data-col-size=\"sm\" data-start=\"979\" data-end=\"1009\">50%<\/td><td data-col-size=\"md\" data-start=\"1009\" data-end=\"1085\">Offices, accounting, small businesses where simplicity and security count<\/td><\/tr><tr data-start=\"1086\" data-end=\"1337\"><td data-start=\"1086\" data-end=\"1101\" data-col-size=\"sm\"><strong data-start=\"1088\" data-end=\"1098\">RAID5<\/strong><\/td><td data-col-size=\"sm\" data-start=\"1101\" data-end=\"1132\">3<\/td><td data-col-size=\"md\" data-start=\"1132\" data-end=\"1188\">Parity \u2013 1 disk failure possible without data loss<\/td><td data-col-size=\"md\" data-start=\"1188\" data-end=\"1245\">Fast\/slow write (with parity calculations)<\/td><td data-col-size=\"sm\" data-start=\"1245\" data-end=\"1287\">~66\u201380% (depending on number of drives)<\/td><td data-col-size=\"md\" data-start=\"1287\" data-end=\"1337\">Small and medium sized businesses with shared files<\/td><\/tr><tr data-start=\"1338\" data-end=\"1559\"><td data-start=\"1338\" data-end=\"1353\" data-col-size=\"sm\"><strong data-start=\"1340\" data-end=\"1350\">RAID6<\/strong><\/td><td data-col-size=\"sm\" data-start=\"1353\" data-end=\"1384\">4<\/td><td data-col-size=\"md\" data-start=\"1384\" data-end=\"1433\">Dual parity - tolerates 2 disk failures<\/td><td data-col-size=\"md\" data-start=\"1433\" data-end=\"1468\">Fast read\/slow write<\/td><td data-col-size=\"sm\" data-start=\"1468\" data-end=\"1496\">~50\u201366%<\/td><td data-col-size=\"md\" data-start=\"1496\" data-end=\"1559\">Companies with high data availability requirements<\/td><\/tr><tr data-start=\"1560\" data-end=\"1814\"><td data-start=\"1560\" data-end=\"1575\" data-col-size=\"sm\"><strong data-start=\"1562\" data-end=\"1573\">RAID10<\/strong><\/td><td data-col-size=\"sm\" data-start=\"1575\" data-end=\"1606\">4<\/td><td data-col-size=\"md\" data-start=\"1606\" data-end=\"1689\">Mirroring and striping combined - 1 disk failure tolerance in each mirror<\/td><td data-col-size=\"md\" data-start=\"1689\" data-end=\"1721\">Very fast \/ fast<\/td><td data-col-size=\"sm\" data-start=\"1721\" data-end=\"1751\">50%<\/td><td data-col-size=\"md\" data-start=\"1751\" data-end=\"1814\">Intensive data work, databases, operational servers<\/td><\/tr><tr data-start=\"1815\" data-end=\"2029\"><td data-start=\"1815\" data-end=\"1839\" data-col-size=\"sm\"><strong data-start=\"1817\" data-end=\"1827\">RAID2<\/strong> <em data-start=\"1828\" data-end=\"1838\">(rare)<\/em><\/td><td data-col-size=\"sm\" data-start=\"1839\" data-end=\"1868\">\u22653 (specific)<\/td><td data-col-size=\"md\" data-start=\"1868\" data-end=\"1915\">ECC Error Correction \u2013 An Obsolete Approach<\/td><td data-col-size=\"md\" data-start=\"1915\" data-end=\"1955\">Not supported on modern hardware<\/td><td data-col-size=\"sm\" data-start=\"1955\" data-end=\"1984\">Low practicality<\/td><td data-col-size=\"md\" data-start=\"1984\" data-end=\"2029\">Theoretical, educational - not used today<\/td><\/tr><tr data-start=\"2030\" data-end=\"2271\"><td data-start=\"2030\" data-end=\"2054\" data-col-size=\"sm\"><strong data-start=\"2032\" data-end=\"2042\">RAID3<\/strong> <em data-start=\"2043\" data-end=\"2053\">(rare)<\/em><\/td><td data-col-size=\"sm\" data-start=\"2054\" data-end=\"2083\">\u22653<\/td><td data-col-size=\"md\" data-start=\"2083\" data-end=\"2124\">Parity on one dedicated disk<\/td><td data-col-size=\"md\" data-start=\"2124\" data-end=\"2177\">Good for large files, poor for many small ones<\/td><td data-col-size=\"sm\" data-start=\"2177\" data-end=\"2206\">~66%<\/td><td data-col-size=\"md\" data-start=\"2206\" data-end=\"2271\">Specialized applications in the past (e.g. video editing)<\/td><\/tr><\/tbody><\/table><\/div><\/div><p>RAID is not a technology \u201cfor IT people\u201d, but a real tool for your company that can decide whether you continue to operate after a disk failure or search for data in the dark. If you are not sure which RAID configuration is best \u2013 ProsteIT can help you choose a solution that is perfectly suited to your needs and budget.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d8742b elementor-widget elementor-widget-image\" data-id=\"8d8742b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"640\" height=\"478\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/prosteit-opieka-informatyczna-firm-grodzisk-mazowiecki.png\" class=\"attachment-large size-large wp-image-7791\" alt=\"what is RAID\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/prosteit-opieka-informatyczna-firm-grodzisk-mazowiecki.png 692w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/prosteit-opieka-informatyczna-firm-grodzisk-mazowiecki-300x224.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/prosteit-opieka-informatyczna-firm-grodzisk-mazowiecki-16x12.png 16w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/prosteit-opieka-informatyczna-firm-grodzisk-mazowiecki-400x300.png 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a616f3 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"8a616f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"44\" data-end=\"95\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">Hardware vs Software RAID \u2013 What to Choose?<\/span><\/h2><p data-start=\"97\" data-end=\"134\">In the previous comparison table we discussed the differences between RAID types, but an equally important question is: <strong data-start=\"104\" data-end=\"187\">Is it worth using hardware or software RAID?<\/strong> Here is a specific comparison, based on the real characteristics and needs of companies:<\/p><h3 data-start=\"136\" data-end=\"168\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Hardware Raid<\/span><\/h3><ul data-start=\"170\" data-end=\"772\"><li data-start=\"170\" data-end=\"248\"><p data-start=\"172\" data-end=\"248\"><strong data-start=\"0\" data-end=\"14\" data-is-only-node=\"\">How it works<\/strong>: The RAID controller (separate card or built into the NAS\/server) manages the array regardless of the operating system.<\/p><\/li><li data-start=\"249\" data-end=\"505\"><p data-start=\"251\" data-end=\"262\"><strong data-start=\"251\" data-end=\"261\">Advantages<\/strong>:<\/p><ul data-start=\"265\" data-end=\"505\"><li data-start=\"265\" data-end=\"343\"><p data-start=\"267\" data-end=\"343\">\u2022 High performance \u2013 controller processors take over RAID tasks, offloading the CPU.<\/p><\/li><li data-start=\"346\" data-end=\"424\"><p data-start=\"348\" data-end=\"424\">\u2022 Integration of advanced features: cache with battery protecting data against power loss, hot-swap, hardware encryption.<\/p><\/li><li data-start=\"427\" data-end=\"505\"><p data-start=\"429\" data-end=\"505\">\u2022 OS independence \u2013 works even if the OS crashes or changes.<\/p><\/li><\/ul><\/li><li data-start=\"506\" data-end=\"772\"><p data-start=\"508\" data-end=\"517\"><strong data-start=\"508\" data-end=\"516\">Defects<\/strong>:<\/p><ul data-start=\"520\" data-end=\"772\"><li data-start=\"520\" data-end=\"602\"><p data-start=\"522\" data-end=\"602\">\u2022 Higher cost \u2013 the RAID controller and its maintenance generate expenses.<\/p><\/li><li data-start=\"605\" data-end=\"687\"><p data-start=\"607\" data-end=\"687\">\u2022 Less flexibility \u2013 configuration depends on the specifics of the controller, and migration to other hardware may require adjustments.<\/p><\/li><li data-start=\"690\" data-end=\"772\"><p data-start=\"692\" data-end=\"772\">\u2022 Controller failure requires a compatible replacement.<\/p><\/li><\/ul><\/li><\/ul><h3 data-start=\"774\" data-end=\"807\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Software RAID<\/span><\/h3><ul data-start=\"809\" data-end=\"1427\"><li data-start=\"809\" data-end=\"891\"><p data-start=\"811\" data-end=\"891\"><strong data-start=\"0\" data-end=\"14\" data-is-only-node=\"\">How it works<\/strong>: RAID managed by the operating system, e.g. Linux (mdadm), Windows (Storage Spaces), ZFS, etc.<\/p><\/li><li data-start=\"892\" data-end=\"1160\"><p data-start=\"894\" data-end=\"905\"><strong data-start=\"894\" data-end=\"904\">Advantages<\/strong>:<\/p><ul data-start=\"908\" data-end=\"1160\"><li data-start=\"908\" data-end=\"990\"><p data-start=\"910\" data-end=\"990\">\u2022 Low cost \u2013 does not require additional hardware, uses existing CPU.<\/p><\/li><li data-start=\"993\" data-end=\"1075\"><p data-start=\"995\" data-end=\"1075\">\u2022 High flexibility \u2013 hardware-independent configuration, easy to change configuration and move disks between machines.<\/p><\/li><li data-start=\"1078\" data-end=\"1160\"><p data-start=\"1080\" data-end=\"1160\">\u2022 Broad support in operating systems \u2013 available in many environments.<\/p><\/li><\/ul><\/li><li data-start=\"1161\" data-end=\"1427\"><p data-start=\"1163\" data-end=\"1172\"><strong data-start=\"1163\" data-end=\"1171\">Defects<\/strong>:<\/p><ul data-start=\"1175\" data-end=\"1427\"><li data-start=\"1175\" data-end=\"1257\"><p data-start=\"1177\" data-end=\"1257\">\u2022 CPU Usage \u2013 Intensive parity calculations can degrade performance, especially with RAID 5\/6.<\/p><\/li><li data-start=\"1260\" data-end=\"1342\"><p data-start=\"1262\" data-end=\"1342\">\u2022 No hardware cache and no power loss protection.<\/p><\/li><li data-start=\"1345\" data-end=\"1427\"><p data-start=\"1347\" data-end=\"1427\">\u2022 Sometimes more complicated data recovery \u2013 dependent on knowledge of the operating system.<\/p><\/li><\/ul><\/li><\/ul><h3 data-start=\"1434\" data-end=\"1465\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Which RAID should I choose for my company?<\/span><\/h3><div><div tabindex=\"-1\"><table data-start=\"1467\" data-end=\"2042\"><thead data-start=\"1467\" data-end=\"1539\"><tr data-start=\"1467\" data-end=\"1539\"><th data-start=\"1467\" data-end=\"1503\" data-col-size=\"sm\">Scenario<\/th><th data-start=\"1503\" data-end=\"1520\" data-col-size=\"md\">Hardware RAID<\/th><th data-start=\"1520\" data-end=\"1539\" data-col-size=\"md\">Software RAID<\/th><\/tr><\/thead><tbody data-start=\"1613\" data-end=\"2042\"><tr data-start=\"1613\" data-end=\"1734\"><td data-start=\"1613\" data-end=\"1647\" data-col-size=\"sm\">Small business, home office<\/td><td data-start=\"1647\" data-end=\"1697\" data-col-size=\"md\">\ud83d\udfe1 Optional if you have a controller in your NAS<\/td><td data-col-size=\"md\" data-start=\"1697\" data-end=\"1734\">\u2705 Recommended - cheap and sufficient<\/td><\/tr><tr data-start=\"1735\" data-end=\"1862\"><td data-start=\"1735\" data-end=\"1777\" data-col-size=\"sm\">Medium Business, Data Intensive<\/td><td data-start=\"1777\" data-end=\"1816\" data-col-size=\"md\">\u2705 Better performance, protective features<\/td><td data-col-size=\"md\" data-start=\"1816\" data-end=\"1862\">\ud83d\udfe1 It may be sufficient for powerful CPUs<\/td><\/tr><tr data-start=\"1863\" data-end=\"1970\"><td data-start=\"1863\" data-end=\"1899\" data-col-size=\"sm\">Priority: Flexibility, Migration<\/td><td data-col-size=\"md\" data-start=\"1899\" data-end=\"1936\">\ud83d\udfe1 Less flexible among devices<\/td><td data-col-size=\"md\" data-start=\"1936\" data-end=\"1970\">\u2705 Free movement of disks<\/td><\/tr><tr data-start=\"1971\" data-end=\"2042\"><td data-start=\"1971\" data-end=\"2005\" data-col-size=\"sm\">Limited budget<\/td><td data-start=\"2005\" data-end=\"2020\" data-col-size=\"md\">\ud83d\udfe1 Expensive<\/td><td data-start=\"2020\" data-end=\"2042\" data-col-size=\"md\">\u2705 Minimal costs<\/td><\/tr><\/tbody><\/table><div><h4><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Practical tips<\/span><\/h4><\/div><\/div><\/div><ul data-start=\"2078\" data-end=\"2417\"><li data-start=\"2078\" data-end=\"2189\"><p data-start=\"2080\" data-end=\"2189\"><strong data-start=\"2080\" data-end=\"2131\">\u2022 Want easy, low-cost RAID for a small office<\/strong>? Choose <strong data-start=\"2141\" data-end=\"2158\">software RAID<\/strong>, e.g. mdadm or Storage Spaces.<\/p><\/li><li data-start=\"2190\" data-end=\"2307\"><p data-start=\"2192\" data-end=\"2307\"><strong data-start=\"2192\" data-end=\"2262\">\u2022 You need speed and protection (cache, hot\u2011swap, encryption)<\/strong> and you have a budget? Go for it <strong data-start=\"2288\" data-end=\"2306\">Hardware RAID<\/strong>.<\/p><\/li><li data-start=\"2308\" data-end=\"2417\"><p data-start=\"2310\" data-end=\"2417\"><strong data-start=\"2310\" data-end=\"2378\">\u2022 You have a NAS server with a built-in controller (like Synology or QNAP)<\/strong> \u2013 this is de facto hardware RAID.<\/p><\/li><\/ul><hr data-start=\"2419\" data-end=\"2422\" \/><p data-start=\"2424\" data-end=\"2662\">\ud83d\udc49 If you are not sure which RAID variant will be best for your company, our team will be happy to help - we will advise, configure and optimize the solution so that it is safe, efficient and tailored to your needs. <a href=\"https:\/\/prosteit.pl\/en\/contact\/\">your needs<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cfd4e86 elementor-widget elementor-widget-image\" data-id=\"cfd4e86\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1460\" height=\"747\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/outsourcing-it-warszawa.jpg\" class=\"attachment-full size-full wp-image-7792\" alt=\"server room photo, IT specialist Pruszk\u00f3w\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/outsourcing-it-warszawa.jpg 1460w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/outsourcing-it-warszawa-300x153.jpg 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/outsourcing-it-warszawa-1024x524.jpg 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/outsourcing-it-warszawa-768x393.jpg 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/outsourcing-it-warszawa-18x9.jpg 18w\" sizes=\"(max-width: 1460px) 100vw, 1460px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4ffc69 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"f4ffc69\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"0\" data-end=\"49\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">RAID vs. backup \u2013 what are the differences?<\/span><\/h2><p data-start=\"51\" data-end=\"88\">While RAID provides data protection, <strong data-start=\"35\" data-end=\"60\">does not replace backup<\/strong>. Here are the key differences and why you might want to use both solutions together:<\/p><h3 data-start=\"95\" data-end=\"138\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID \u2013 protection against hardware failure<\/span><\/h3><p data-start=\"140\" data-end=\"254\">RAID primarily protects against <strong data-start=\"35\" data-end=\"51\">disk failure<\/strong>. This technology stores data in a way that allows work to continue even if one or more disks fail (depending on the RAID level). However, RAID works <strong data-start=\"19\" data-end=\"44\">in real time<\/strong>, which means that:<\/p><ul data-start=\"256\" data-end=\"413\"><li data-start=\"256\" data-end=\"334\"><p data-start=\"258\" data-end=\"334\">\u2022 If <em data-start=\"6\" data-end=\"53\">the file is accidentally deleted or overwritten<\/em>, the change takes place immediately on all disks, without the possibility of restoring the previous version.<\/p><\/li><li data-start=\"335\" data-end=\"413\"><p data-start=\"337\" data-end=\"413\">\u2022 If a system becomes infected with ransomware, the malware will spread across the entire RAID array.<\/p><\/li><\/ul><h3 data-start=\"420\" data-end=\"465\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Backup \u2013 security of copies over time<\/span><\/h3><p data-start=\"467\" data-end=\"504\"><a href=\"https:\/\/prosteit.pl\/en\/backup-and-recovery-solutions\/\">Backup<\/a> this <strong data-start=\"10\" data-end=\"51\">copies of data stored separately<\/strong> \u2013 on another machine, in the cloud, on tapes, etc. This allows you to:<\/p><ul data-start=\"506\" data-end=\"752\"><li data-start=\"506\" data-end=\"586\"><p data-start=\"508\" data-end=\"586\">\u2022 Restore the system or files to a specific point in time (<em data-start=\"61\" data-end=\"85\">point in time recovery<\/em>).<\/p><\/li><li data-start=\"587\" data-end=\"669\"><p data-start=\"589\" data-end=\"669\">\u2022 Reverse the effects of user error, accidental deletion, infection or failure of the entire storage location (e.g. fire, theft).<\/p><\/li><li data-start=\"670\" data-end=\"752\"><p data-start=\"672\" data-end=\"752\">\u2022 Maintain change history \u2013 file versioning over days\/weeks.<\/p><\/li><\/ul><h3 data-start=\"759\" data-end=\"803\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">RAID + backup = full protection<\/span><\/h3><p data-start=\"805\" data-end=\"876\"><strong data-start=\"805\" data-end=\"875\">RAID and backup are two different but complementary layers of protection.<\/strong>:<\/p><ul data-start=\"878\" data-end=\"961\"><li data-start=\"878\" data-end=\"919\"><p data-start=\"880\" data-end=\"919\">\u2022 RAID provides <strong data-start=\"14\" data-end=\"77\">business continuity and single disk failure tolerance<\/strong>.<\/p><\/li><li data-start=\"920\" data-end=\"961\"><p data-start=\"922\" data-end=\"961\">\u2022 Backup allows you to <strong data-start=\"18\" data-end=\"53\">recovering data from the past<\/strong> \u2013 restoring a deleted file or a pre-attack version.<\/p><\/li><\/ul><p data-start=\"963\" data-end=\"1002\">Experts recommend a strategy <strong data-start=\"28\" data-end=\"39\">&quot;3-2-1&quot;<\/strong>:<\/p><ol data-start=\"1003\" data-end=\"1176\"><li data-start=\"1003\" data-end=\"1047\"><p data-start=\"1006\" data-end=\"1047\">Three copies of data<\/p><\/li><li data-start=\"1048\" data-end=\"1092\"><p data-start=\"1051\" data-end=\"1092\">Two different media (e.g. RAID + cloud)<\/p><\/li><li data-start=\"1093\" data-end=\"1176\"><p data-start=\"1096\" data-end=\"1176\">One copy off-site<\/p><\/li><\/ol><h3 data-start=\"1183\" data-end=\"1211\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Practical comparison<\/span><\/h3><div><div tabindex=\"-1\"><table data-start=\"1213\" data-end=\"1843\"><thead data-start=\"1213\" data-end=\"1291\"><tr data-start=\"1213\" data-end=\"1291\"><th data-start=\"1213\" data-end=\"1236\" data-col-size=\"sm\">Scenario<\/th><th data-start=\"1236\" data-end=\"1261\" data-col-size=\"sm\">Is RAID coping?<\/th><th data-start=\"1261\" data-end=\"1291\" data-col-size=\"sm\">Is backup coping?<\/th><\/tr><\/thead><tbody data-start=\"1373\" data-end=\"1843\"><tr data-start=\"1373\" data-end=\"1491\"><td data-start=\"1373\" data-end=\"1422\" data-col-size=\"sm\">1 disk failure<\/td><td data-col-size=\"sm\" data-start=\"1422\" data-end=\"1448\">\u2705 Continued work<\/td><td data-col-size=\"sm\" data-start=\"1448\" data-end=\"1491\">\u26d4 No, if backup is unavailable<\/td><\/tr><tr data-start=\"1492\" data-end=\"1623\"><td data-start=\"1492\" data-end=\"1534\" data-col-size=\"sm\">Accidental deletion of a file<\/td><td data-col-size=\"sm\" data-start=\"1534\" data-end=\"1579\">\u26d4 File disappeared from RAID<\/td><td data-col-size=\"sm\" data-start=\"1579\" data-end=\"1623\">\u2705 Can be recovered from a copy<\/td><\/tr><tr data-start=\"1624\" data-end=\"1733\"><td data-start=\"1624\" data-end=\"1648\" data-col-size=\"sm\">Ransomware<\/td><td data-start=\"1648\" data-end=\"1690\" data-col-size=\"sm\">\u26d4 The infection is spreading<\/td><td data-start=\"1690\" data-end=\"1733\" data-col-size=\"sm\">\u2705 We can restore a clean version<\/td><\/tr><tr data-start=\"1734\" data-end=\"1843\"><td data-start=\"1734\" data-end=\"1758\" data-col-size=\"sm\">Fire\/theft<\/td><td data-start=\"1758\" data-end=\"1800\" data-col-size=\"sm\">\u26d4 Loss of the entire matrix<\/td><td data-col-size=\"sm\" data-start=\"1800\" data-end=\"1843\">\u2705 Off-site backup can be safe<\/td><\/tr><\/tbody><\/table><\/div><\/div><hr data-start=\"2264\" data-end=\"2267\" \/><p data-start=\"2269\" data-end=\"2486\">The use of RAID in combination with system backup gives <strong data-start=\"2327\" data-end=\"2375\">real, multi-layered data security<\/strong> \u2013 especially important for smaller companies that do not have the IT resources or budget for quick data recovery, any failure can have serious consequences.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-476ee30 elementor-widget elementor-widget-image\" data-id=\"476ee30\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"583\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/RAID-co-to-jest-pomoc-informatyczna-dla-firm-usluga.png\" class=\"attachment-full size-full wp-image-7796\" alt=\"data security in the company, backup, and RAID\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/RAID-co-to-jest-pomoc-informatyczna-dla-firm-usluga.png 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/RAID-co-to-jest-pomoc-informatyczna-dla-firm-usluga-300x171.png 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/RAID-co-to-jest-pomoc-informatyczna-dla-firm-usluga-768x437.png 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/RAID-co-to-jest-pomoc-informatyczna-dla-firm-usluga-18x10.png 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c9a03ef elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"c9a03ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"44\" data-end=\"117\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">RAID in practice \u2013 examples of implementation in small and medium-sized companies<\/span><\/h2><p data-start=\"119\" data-end=\"156\">See how RAID works in real business scenarios \u2013 simple, effective and tailored to the needs of small businesses.<\/p><h3 data-start=\"163\" data-end=\"234\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Example 1: Accounting office - customer data security<\/span><\/h3><p data-start=\"236\" data-end=\"337\"><strong data-start=\"236\" data-end=\"251\">Scenario:<\/strong> <a href=\"https:\/\/www.biurorachunkowe-sg.pl\/\" target=\"_blank\" rel=\"noopener\">Accounting office<\/a> stores invoices, tax documentation and personal data of customers.<\/p><p data-start=\"339\" data-end=\"419\"><strong data-start=\"339\" data-end=\"353\">Implementation:<\/strong> 2-slot NAS, RAID 1 \u2013 data mirrored across two drives.<\/p><p data-start=\"421\" data-end=\"431\"><strong data-start=\"421\" data-end=\"431\">Effect:<\/strong><\/p><ul data-start=\"432\" data-end=\"511\"><li data-start=\"432\" data-end=\"471\"><p data-start=\"434\" data-end=\"471\"><strong data-start=\"0\" data-end=\"30\" data-is-only-node=\"\">\u2022 Disk failure protection<\/strong> \u2013 if one drive fails, the company continues to operate without data loss.<\/p><\/li><li data-start=\"472\" data-end=\"511\"><p data-start=\"474\" data-end=\"511\"><strong data-start=\"0\" data-end=\"47\" data-is-only-node=\"\">\u2022 Simple operation and quick return to action<\/strong> \u2013 just replace one disk, the array will rebuild automatically.<\/p><\/li><\/ul><h3 data-start=\"518\" data-end=\"583\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Example 2: Creative Agency \u2013 Working with Large Files<\/span><\/h3><p data-start=\"585\" data-end=\"691\"><strong data-start=\"585\" data-end=\"600\">Scenario:<\/strong> The agency designs graphics, print and video materials, often working on large files.<\/p><p data-start=\"693\" data-end=\"783\"><strong data-start=\"693\" data-end=\"707\">Implementation:<\/strong> NAS with 4 disks, RAID 5 \u2013 parity implemented by data striping.<\/p><p data-start=\"785\" data-end=\"795\"><strong data-start=\"785\" data-end=\"795\">Effect:<\/strong><\/p><ul data-start=\"796\" data-end=\"954\"><li data-start=\"796\" data-end=\"835\"><p data-start=\"798\" data-end=\"835\"><strong data-start=\"0\" data-end=\"40\" data-is-only-node=\"\">\u2022 Efficient system for several employees<\/strong> \u2013 accelerated reading thanks to parallel operation of disks.<\/p><\/li><li data-start=\"836\" data-end=\"914\"><p data-start=\"838\" data-end=\"914\"><strong data-start=\"0\" data-end=\"31\" data-is-only-node=\"\">\u2022 Safe work environment<\/strong> \u2013 1 disk failure tolerance without interruption in operation.<\/p><\/li><li data-start=\"915\" data-end=\"954\"><p data-start=\"917\" data-end=\"954\"><strong data-start=\"0\" data-end=\"39\" data-is-only-node=\"\">\u2022 Efficient use of space<\/strong> \u2013 approx. 75 % capacity available.<\/p><\/li><\/ul><h3 data-start=\"961\" data-end=\"1019\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Example 3: Trading company - business continuity<\/span><\/h3><p data-start=\"1021\" data-end=\"1124\"><strong data-start=\"1021\" data-end=\"1036\">Scenario:<\/strong> The company uses a cloud-based product database and billing, but local data is key.<\/p><p data-start=\"1126\" data-end=\"1205\"><strong data-start=\"1126\" data-end=\"1140\">Implementation:<\/strong> 4-disk server, RAID 10 \u2013 combination of mirroring and striping.<\/p><p data-start=\"1207\" data-end=\"1217\"><strong data-start=\"1207\" data-end=\"1217\">Effect:<\/strong><\/p><ul data-start=\"1218\" data-end=\"1339\"><li data-start=\"1218\" data-end=\"1257\"><p data-start=\"1220\" data-end=\"1257\"><strong data-start=\"0\" data-end=\"27\" data-is-only-node=\"\">\u2022 Very high efficiency<\/strong> \u2013 ideal for operational work on large databases.<\/p><\/li><li data-start=\"1258\" data-end=\"1297\"><p data-start=\"1260\" data-end=\"1297\"><strong data-start=\"0\" data-end=\"30\" data-is-only-node=\"\">\u2022 Disk failure resistance<\/strong> \u2013 survives the failure of one disk in each RAID 1 pair.<\/p><\/li><li data-start=\"1298\" data-end=\"1339\"><p data-start=\"1300\" data-end=\"1339\"><strong data-start=\"0\" data-end=\"25\" data-is-only-node=\"\">\u2022 Stability and speed<\/strong> \u2013 even under intense load.<\/p><\/li><\/ul><h3 data-start=\"1346\" data-end=\"1410\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Example 4: Small Workshop \u2013 Economical Configuration<\/span><\/h3><p data-start=\"1412\" data-end=\"1521\"><strong data-start=\"1412\" data-end=\"1427\">Scenario:<\/strong> A three-person carpentry workshop needs a reliable warehouse for documents and product photos.<\/p><p data-start=\"1523\" data-end=\"1627\"><strong data-start=\"1523\" data-end=\"1537\">Implementation:<\/strong> 2-disk RAID 1 on NAS with additional offline backup disk (USB backup).<\/p><p data-start=\"1629\" data-end=\"1639\"><strong data-start=\"1629\" data-end=\"1639\">Effect:<\/strong><\/p><ul data-start=\"1640\" data-end=\"1806\"><li data-start=\"1640\" data-end=\"1681\"><p data-start=\"1642\" data-end=\"1681\"><strong data-start=\"0\" data-end=\"47\" data-is-only-node=\"\">\u2022 Solid data protection in the so-called &quot;everyday&quot;<\/strong> \u2013 RAID 1 protects against disk failure.<\/p><\/li><li data-start=\"1682\" data-end=\"1723\"><p data-start=\"1684\" data-end=\"1723\"><strong data-start=\"0\" data-end=\"19\" data-is-only-node=\"\">\u2022 Offline backup<\/strong> \u2013 protection against incidents such as ransomware or accidental deletion.<\/p><\/li><li data-start=\"1724\" data-end=\"1806\"><p data-start=\"1726\" data-end=\"1806\"><strong data-start=\"0\" data-end=\"31\" data-is-only-node=\"\">\u2022 Simple and cheap setup<\/strong> \u2013 a basic NAS with automatic backup function is enough.<\/p><\/li><\/ul><h3 data-start=\"1813\" data-end=\"1860\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Additional benefits of RAID for small businesses<\/span><\/h3><ul data-start=\"1862\" data-end=\"2069\"><li data-start=\"1862\" data-end=\"1944\"><p data-start=\"1864\" data-end=\"1944\"><strong data-start=\"0\" data-end=\"24\" data-is-only-node=\"\">\u2022 Data centralization<\/strong> \u2013 NAS acts as a central resource for the entire team, accelerating the flow of information.<\/p><\/li><li data-start=\"1945\" data-end=\"1986\"><p data-start=\"1947\" data-end=\"1986\"><strong data-start=\"0\" data-end=\"16\" data-is-only-node=\"\">\u2022 Scalability<\/strong> \u2013 Easily add additional drives or scale to RAID 5\/6 as your business needs grow.<\/p><\/li><li data-start=\"1987\" data-end=\"2069\"><p data-start=\"1989\" data-end=\"2069\"><strong data-start=\"0\" data-end=\"17\" data-is-only-node=\"\">\u2022 Remote access<\/strong> \u2013 access to data via VPN or intuitive small NAS software (e.g. Synology, Unraid).<\/p><\/li><\/ul><h3 data-start=\"2076\" data-end=\"2114\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Why use RAID?<\/span><\/h3><p data-start=\"2116\" data-end=\"2198\">RAID is not a luxury \u2013 it is <strong data-start=\"2144\" data-end=\"2190\">a practical, well-reasoned solution<\/strong>, which:<\/p><ol data-start=\"2200\" data-end=\"2389\"><li data-start=\"2200\" data-end=\"2274\"><p data-start=\"2203\" data-end=\"2274\"><strong data-start=\"2203\" data-end=\"2242\">Protects data in the event of a disk failure<\/strong> \u2013 prevents work stoppages;<\/p><\/li><li data-start=\"2275\" data-end=\"2338\"><p data-start=\"2278\" data-end=\"2338\"><strong data-start=\"2278\" data-end=\"2300\">Increases efficiency<\/strong> while putting a strain on the team;<\/p><\/li><li data-start=\"2339\" data-end=\"2389\"><p data-start=\"2342\" data-end=\"2389\"><strong data-start=\"2342\" data-end=\"2366\">Allows scaling<\/strong> as the company develops.<\/p><\/li><\/ol><p data-start=\"2391\" data-end=\"2688\">If you don&#039;t have an IT department or are unsure about your RAID configuration - <strong data-start=\"2466\" data-end=\"2506\">ProsteIT supports implementations from A to Z<\/strong>: we will select the right RAID type, configure the environment, provide disk health monitoring and automatic backup. Thanks to this, you will avoid errors and focus on running your business.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b9f13b elementor-widget elementor-widget-spacer\" data-id=\"8b9f13b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb34895 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"eb34895\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"44\" data-end=\"101\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">What to Avoid \u2013 Common Mistakes When Implementing RAID<\/span><\/h2><p data-start=\"103\" data-end=\"140\">Below are the most common problems that can prevent RAID from working properly \u2013 and in extreme cases, lead to data loss or system failure. By avoiding them, your company will gain really solid protection.<\/p><h3 data-start=\"147\" data-end=\"204\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">1. Errors during array rebuild (RAID 5\/6 rebuild)<\/span><\/h3><p data-start=\"205\" data-end=\"242\">It happens that:<\/p><ul data-start=\"243\" data-end=\"479\"><li data-start=\"243\" data-end=\"321\"><p data-start=\"245\" data-end=\"321\">\u2022 Will be replaced <strong data-start=\"20\" data-end=\"32\">bad disk<\/strong> \u2013 instead of the damaged one, a functional one is removed, which ends in a failure of the entire array.<\/p><\/li><li data-start=\"322\" data-end=\"400\"><p data-start=\"324\" data-end=\"400\">\u2022 The rebuild process is interrupted (e.g. by electricity, user error) \u2013 resulting in data corruption.<\/p><\/li><li data-start=\"401\" data-end=\"479\"><p data-start=\"403\" data-end=\"479\">\u2022 Using an incorrect configuration of the number of disks or settings (e.g. hot-spare treated as an element of the array) \u2013 disturbs data consistency.<\/p><\/li><\/ul><p data-start=\"481\" data-end=\"518\"><strong data-start=\"3\" data-end=\"18\">How to avoid<\/strong>: carefully mark damaged disks (e.g. stickers), use only the controller interface during rebuild, do not interrupt the process and have a UPS.<\/p><h3 data-start=\"525\" data-end=\"581\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">2. Using RAID-unaware tools (e.g. chkdsk)<\/span><\/h3><p data-start=\"582\" data-end=\"662\">Tools such as <strong data-start=\"20\" data-end=\"30\">chkdsk<\/strong> can &quot;rescue&quot; a failed disk, but they do not follow the RAID logic. As a result, they can <strong data-start=\"121\" data-end=\"151\">overwrite parity system<\/strong>, damaging the matrix structure.<\/p><p data-start=\"664\" data-end=\"703\"><strong data-start=\"3\" data-end=\"18\">How to avoid<\/strong>: never use disk utilities directly on RAID members \u2013 use utilities dedicated to mdadm, hardware controller, etc.<\/p><h3 data-start=\"710\" data-end=\"765\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">3. Initialize or format RAID 5 instead of rebuilding<\/span><\/h3><p data-start=\"766\" data-end=\"846\">If RAID is accidentally <strong data-start=\"32\" data-end=\"52\">Initialized<\/strong> instead of rebuilt \u2013 all data will be overwritten and will not be recoverable.<\/p><p data-start=\"848\" data-end=\"887\"><strong data-start=\"3\" data-end=\"18\">How to avoid<\/strong>: check messages before formatting, use &quot;rebuild&quot; or &quot;repair&quot; modes, block manual access to some options (e.g. via service passwords).<\/p><h3 data-start=\"894\" data-end=\"957\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">4. Stripe size or disk order is incorrectly configured<\/span><\/h3><p data-start=\"958\" data-end=\"1038\">Changing the disk order or block size can invalidate the RAID structure \u2013 even if the disk itself is functional.<\/p><p data-start=\"1040\" data-end=\"1079\"><strong data-start=\"3\" data-end=\"18\">How to avoid<\/strong>: document disk order, save stripe parameters, especially when moving RAID between controllers.<\/p><h3 data-start=\"1086\" data-end=\"1131\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">5. Maintaining RAID in a degraded state<\/span><\/h3><p data-start=\"1132\" data-end=\"1212\">Running a system with one damaged disk (so-called degraded mode) without a quick replacement results in high susceptibility to another failure and complete stoppage of work.<\/p><p data-start=\"1214\" data-end=\"1253\"><strong data-start=\"3\" data-end=\"18\">How to avoid<\/strong>: use SMART monitoring and notifications, replace faulty disks immediately \u2013 it is best to have one spare (\u201chot spare\u201d).<\/p><h3 data-start=\"1260\" data-end=\"1289\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">6. RAID controller failure<\/span><\/h3><p data-start=\"1290\" data-end=\"1370\">The controller is the heart of the array \u2013 its failure often results in inaccessibility to all disks, even if they themselves are functional.<\/p><p data-start=\"1372\" data-end=\"1411\"><strong data-start=\"3\" data-end=\"18\">How to avoid<\/strong>: Invest in a working replacement controller that is compatible with your current RAID configuration, or use systems that allow you to easily migrate arrays between controllers.<\/p><h3 data-start=\"1418\" data-end=\"1462\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">7. Using Desktop Drives Without TLER<\/span><\/h3><p data-start=\"1463\" data-end=\"1543\">Consumer drives without TLER may hang on an error \u2013 the controller may then consider them unavailable, leading to RAID degradation.<\/p><p data-start=\"1545\" data-end=\"1660\"><strong data-start=\"1548\" data-end=\"1563\">How to avoid<\/strong>: use enterprise-class drives or at least those with active TLER (ATA Error Recovery Control).<\/p><h3 data-start=\"1667\" data-end=\"1701\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">How to minimize risk?<\/span><\/h3><ol data-start=\"1703\" data-end=\"1995\"><li data-start=\"1703\" data-end=\"1806\"><p data-start=\"1706\" data-end=\"1806\"><strong data-start=\"1706\" data-end=\"1732\">Hire specialists<\/strong> (such as ProsteIT) \u2013 you will avoid configuration and hardware errors<\/p><\/li><li data-start=\"1807\" data-end=\"1896\"><p data-start=\"1810\" data-end=\"1896\"><strong data-start=\"1810\" data-end=\"1845\">Monitor and automate repairs<\/strong> \u2013 SMART notifications, hot-spare disk stocks<\/p><\/li><li data-start=\"1897\" data-end=\"1995\"><p data-start=\"1900\" data-end=\"1995\"><strong data-start=\"1900\" data-end=\"1937\">Preparedness for worst-case scenarios<\/strong> -contingency plan, recovery tests and backup<\/p><\/li><\/ol><hr data-start=\"1997\" data-end=\"2000\" \/><p data-start=\"2002\" data-end=\"2353\">The conclusion is simple: RAID is not just a configuration \u2013 it is a process. Even the best RAID level will not protect against errors in the operation if you do not prepare the procedures, equipment and support. <strong data-start=\"2185\" data-end=\"2297\">ProsteIT comprehensive support for RAID implementation \u2013 from monitoring, through configuration, to array regeneration<\/strong>, which significantly reduces the risk of business interruption.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-81022b9 elementor-widget elementor-widget-image\" data-id=\"81022b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"651\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/serwerownia-informatyk-warszawa-i-okolice-it-dla-firm.jpg\" class=\"attachment-full size-full wp-image-7802\" alt=\"SimpleIT server room, IT specialist Warsaw and surroundings\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/serwerownia-informatyk-warszawa-i-okolice-it-dla-firm.jpg 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/serwerownia-informatyk-warszawa-i-okolice-it-dla-firm-300x191.jpg 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/serwerownia-informatyk-warszawa-i-okolice-it-dla-firm-768x488.jpg 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/serwerownia-informatyk-warszawa-i-okolice-it-dla-firm-18x12.jpg 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3400eac elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"3400eac\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"44\" data-end=\"127\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">How to implement RAID in your company? When is it worth using the help of an IT specialist?<\/span><\/h2><p data-start=\"129\" data-end=\"166\">RAID is a powerful tool, but without the right technical approach, it can do more harm than good. Here is a practical, step-by-step guide to implementing RAID in a small or medium-sized business \u2013 including when it is worth engaging expert support, e.g. <strong data-start=\"272\" data-end=\"284\">SimpleIT<\/strong>.<\/p><h3 data-start=\"173\" data-end=\"238\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Step 1: Define your needs and choose the appropriate RAID level<\/span><\/h3><ul data-start=\"240\" data-end=\"399\"><li data-start=\"240\" data-end=\"279\"><p data-start=\"242\" data-end=\"279\"><strong data-start=\"0\" data-end=\"29\" data-is-only-node=\"\">\u2022 How much data do you store?<\/strong> Consider how often and for how long the array will be used.<\/p><\/li><li data-start=\"280\" data-end=\"319\"><p data-start=\"282\" data-end=\"319\"><strong data-start=\"0\" data-end=\"27\" data-is-only-node=\"\">\u2022 How many disks can you use?<\/strong> Do you have a budget for 2, 3 or more media?<\/p><\/li><li data-start=\"320\" data-end=\"359\"><p data-start=\"322\" data-end=\"359\"><strong data-start=\"0\" data-end=\"30\" data-is-only-node=\"\">\u2022 What does your workflow look like?<\/strong> Is it mostly reading large files (RAID 5) or intensive writing (RAID 10)?<\/p><\/li><li data-start=\"360\" data-end=\"399\"><p data-start=\"362\" data-end=\"399\"><strong data-start=\"0\" data-end=\"44\" data-is-only-node=\"\">\u2022 Is it worth the risk of RAID degradation?<\/strong> If performance randomness is not acceptable, RAID 6 or 10 may be better than RAID 5.<\/p><\/li><\/ul><p data-start=\"401\" data-end=\"438\">Considering these questions will help you choose the RAID level that\u2019s right for your business \u2013 a crucial step before purchasing equipment.<\/p><h3 data-start=\"445\" data-end=\"496\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Step 2: Selecting RAID Hardware or Tools<\/span><\/h3><ol data-start=\"498\" data-end=\"833\"><li data-start=\"498\" data-end=\"620\"><p data-start=\"501\" data-end=\"538\"><strong data-start=\"0\" data-end=\"18\" data-is-only-node=\"\">Hardware RAID<\/strong> \u2013 controller or NAS with built-in controller:<\/p><ul data-start=\"542\" data-end=\"620\"><li data-start=\"542\" data-end=\"620\"><p data-start=\"544\" data-end=\"620\">\u2022 Check the requirements for the number of disks, SATA\/SAS ports, cache presence, hot-swap support, encryption.<\/p><\/li><\/ul><\/li><li data-start=\"621\" data-end=\"749\"><p data-start=\"624\" data-end=\"663\"><strong data-start=\"0\" data-end=\"19\" data-is-only-node=\"\">Software RAID<\/strong> \u2013 use built-in OS tools:<\/p><ul data-start=\"667\" data-end=\"749\"><li data-start=\"667\" data-end=\"749\"><p data-start=\"669\" data-end=\"749\">\u2022 Linux (mdadm, ZFS), Windows (Storage Spaces), FreeBSD\/TrueNAS.<\/p><\/li><\/ul><\/li><li data-start=\"750\" data-end=\"833\"><p data-start=\"753\" data-end=\"833\"><strong data-start=\"0\" data-end=\"10\" data-is-only-node=\"\">Disks:<\/strong> choose models with TLER \/ enterprise instead of cheap desktop ones to maintain RAID stability.<\/p><\/li><\/ol><h3 data-start=\"840\" data-end=\"889\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Step 3: Installing and Configuring the Array<\/span><\/h3><p data-start=\"891\" data-end=\"918\"><strong data-start=\"891\" data-end=\"918\">For hardware RAID:<\/strong><\/p><ul data-start=\"919\" data-end=\"1043\"><li data-start=\"919\" data-end=\"960\"><p data-start=\"921\" data-end=\"960\">\u2022 Install the controller (or prepare the NAS), connect the drives and enter the RAID BIOS\/firmware.<\/p><\/li><li data-start=\"961\" data-end=\"1043\"><p data-start=\"963\" data-end=\"1043\">\u2022 Select RAID level, stripe size (e.g. 64 KB for general use), create array, confirm initialization.<\/p><\/li><\/ul><p data-start=\"1045\" data-end=\"1091\"><strong data-start=\"1045\" data-end=\"1091\">For software RAID (e.g. Linux mdadm):<\/strong><\/p><ul data-start=\"1092\" data-end=\"1258\"><li data-start=\"1092\" data-end=\"1133\"><p data-start=\"1094\" data-end=\"1133\">\u2022 Install the tool, connect the disks, check their status (SMART).<\/p><\/li><li data-start=\"1134\" data-end=\"1175\"><p data-start=\"1136\" data-end=\"1175\">\u2022 Configure RAID: e.g. <code data-start=\"22\" data-end=\"101\" data-is-last-node=\"\">mdadm --create \/dev\/md0 --level=5 --raid-devices=3 \/dev\/sdb \/dev\/sdc \/dev\/sdd<\/code><\/p><\/li><li data-start=\"1176\" data-end=\"1258\"><p data-start=\"1178\" data-end=\"1258\">\u2022 Create a file system and register the configuration so that the RAID mounts on system startup.<\/p><\/li><\/ul><h3 data-start=\"1265\" data-end=\"1301\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Step 4: Testing and Optimization<\/span><\/h3><ul data-start=\"1303\" data-end=\"1428\"><li data-start=\"1303\" data-end=\"1344\"><p data-start=\"1305\" data-end=\"1344\">\u2022 Run read\/write tests in conditions similar to production applications.<\/p><\/li><li data-start=\"1345\" data-end=\"1386\"><p data-start=\"1347\" data-end=\"1386\">\u2022 Check CPU load (especially with RAID 5\/6 in software configuration).<\/p><\/li><li data-start=\"1387\" data-end=\"1428\"><p data-start=\"1389\" data-end=\"1428\">\u2022 Set SMART notifications and monitor disk health and operating temperatures.<\/p><\/li><\/ul><h3 data-start=\"1435\" data-end=\"1488\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Step 5: Emergency Procedure \u2013 Replacement and Rebuild<\/span><\/h3><ul data-start=\"1490\" data-end=\"1656\"><li data-start=\"1490\" data-end=\"1531\"><p data-start=\"1492\" data-end=\"1531\">\u2022 Specify the hot spare drive model or prepare the replacement procedure.<\/p><\/li><li data-start=\"1532\" data-end=\"1573\"><p data-start=\"1534\" data-end=\"1573\">\u2022 Replace the failed disk exactly and allow the array to fully rebuild.<\/p><\/li><li data-start=\"1574\" data-end=\"1656\"><p data-start=\"1576\" data-end=\"1656\">\u2022 Use a UPS \u2013 the rebuild process is particularly susceptible to damage during a power outage.<\/p><\/li><\/ul><h3 data-start=\"1663\" data-end=\"1706\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Step 6: Backup - RAID Completion<\/span><\/h3><p data-start=\"1708\" data-end=\"1788\">RAID is not a backup! Plan a backup strategy: local + off-site (e.g. cloud, external drive). Test data recovery, implement the &quot;point-in-time&quot; procedure.<\/p><h3 data-start=\"1795\" data-end=\"1870\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Step 7: When to Seek Professional Help<\/span><\/h3><ul data-start=\"1872\" data-end=\"2368\"><li data-start=\"1872\" data-end=\"1990\"><p data-start=\"1874\" data-end=\"1990\">\u2022 When you need <strong data-start=\"1891\" data-end=\"1922\">RAID equipment subsidies<\/strong> \u2013 we will select the controller\/disks taking into account performance and budget.<\/p><\/li><li data-start=\"1991\" data-end=\"2124\"><p data-start=\"1993\" data-end=\"2124\">\u2022 If the matrix is to be <strong data-start=\"2014\" data-end=\"2046\">part of the company&#039;s infrastructure<\/strong> \u2013 we will combine RAID with backup, VPN, monitoring and security procedures.<\/p><\/li><li data-start=\"2125\" data-end=\"2250\"><p data-start=\"2127\" data-end=\"2250\">\u2022 You need <strong data-start=\"2140\" data-end=\"2184\">emergency replacement\/rebuild support<\/strong>? We have experience in fast and trouble-free RAID repair.<\/p><\/li><li data-start=\"2251\" data-end=\"2368\"><p data-start=\"2253\" data-end=\"2368\">\u2022 Don&#039;t have an IT department? \u2013\u00a0<strong data-start=\"2275\" data-end=\"2329\">We offer full RAID implementation and maintenance<\/strong>, from installation to staff training.<\/p><\/li><\/ul><div>\u00a0<\/div><p data-start=\"2396\" data-end=\"2430\"><b>RAID implementation<\/b> in the company it is a process:<\/p><ul data-start=\"2431\" data-end=\"2538\"><li data-start=\"2431\" data-end=\"2452\"><p data-start=\"2433\" data-end=\"2452\">\u2022 from needs analysis,<\/p><\/li><li data-start=\"2453\" data-end=\"2491\"><p data-start=\"2455\" data-end=\"2491\">\u2022 by selecting equipment or technology,<\/p><\/li><li data-start=\"2492\" data-end=\"2538\"><p data-start=\"2494\" data-end=\"2538\">\u2022 to configuration, testing and emergency procedures.<\/p><\/li><\/ul><p data-start=\"2540\" data-end=\"2793\">A well-configured RAID + backup is the foundation of secure data storage. And if you do not have the technical resources in-house \u2013<strong data-start=\"2680\" data-end=\"2729\">\u00a0we provide turnkey RAID implementations<\/strong>, minimizing risk and ensuring the stability of the company&#039;s operations.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1ea0dc elementor-widget elementor-widget-image\" data-id=\"e1ea0dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1013\" src=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/bezpieczenstwo-it-w-firmie-usluga-scaled.jpg\" class=\"attachment-full size-full wp-image-7795\" alt=\"\" srcset=\"https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/bezpieczenstwo-it-w-firmie-usluga-scaled.jpg 2560w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/bezpieczenstwo-it-w-firmie-usluga-300x119.jpg 300w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/bezpieczenstwo-it-w-firmie-usluga-1024x405.jpg 1024w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/bezpieczenstwo-it-w-firmie-usluga-768x304.jpg 768w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/bezpieczenstwo-it-w-firmie-usluga-1536x608.jpg 1536w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/bezpieczenstwo-it-w-firmie-usluga-2048x810.jpg 2048w, https:\/\/prosteit.pl\/wp-content\/uploads\/2025\/06\/bezpieczenstwo-it-w-firmie-usluga-18x7.jpg 18w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0152146 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"0152146\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"0\" data-end=\"64\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">RAID Alternatives and the Future \u2013 What to Choose in 2025?<\/span><\/h2><p data-start=\"66\" data-end=\"103\">While RAID is a solid foundation for local data protection, technological advances are providing us with new, often more flexible and efficient solutions. Here are some things to consider in addition to traditional RAID configurations:<\/p><h3 data-start=\"110\" data-end=\"161\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Hybrid RAID and SHR (Synology Hybrid RAID)<\/span><\/h3><ul data-start=\"163\" data-end=\"360\"><li data-start=\"163\" data-end=\"241\"><p data-start=\"165\" data-end=\"241\"><strong data-start=\"0\" data-end=\"15\" data-is-only-node=\"\">\u2022 What is this?<\/strong> Synology SHR automatically optimizes space utilization across multiple drives, acting as a smarter version of RAID 1\/5 with less configuration complexity<\/p><\/li><li data-start=\"242\" data-end=\"281\"><p data-start=\"244\" data-end=\"281\"><strong data-start=\"0\" data-end=\"19\" data-is-only-node=\"\">\u2022 Why is it worth it?<\/strong> Allows you to use different drive capacities without wasting space \u2013 great for growing your NAS over time.<\/p><\/li><li data-start=\"282\" data-end=\"360\"><p data-start=\"284\" data-end=\"360\"><strong data-start=\"0\" data-end=\"17\" data-is-only-node=\"\">\u2022 Limitations:<\/strong> only works on Synology hardware; newer models also limit compatibility with uncertified NVMe or HDD storage.<\/p><\/li><\/ul><h3 data-start=\"367\" data-end=\"414\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">TrueNas (ZFS) and QNAP QuTS hero (ZFS)<\/span><\/h3><ul data-start=\"416\" data-end=\"657\"><li data-start=\"416\" data-end=\"494\"><p data-start=\"418\" data-end=\"494\"><strong data-start=\"0\" data-end=\"7\" data-is-only-node=\"\">\u2022 ZFS<\/strong> It&#039;s advanced <a href=\"https:\/\/pl.wikipedia.org\/wiki\/ZFS\" target=\"_blank\" rel=\"noopener\">file system<\/a> and volume manager, providing features such as <em data-start=\"91\" data-end=\"105\">checksumming<\/em>, compression, deduplication, snapshots, and RAID 5\/6 error recovery.<\/p><\/li><li data-start=\"495\" data-end=\"573\"><p data-start=\"497\" data-end=\"573\"><strong data-start=\"0\" data-end=\"20\" data-is-only-node=\"\">\u2022 QNAP with QuTS hero<\/strong> offers ZFS on NAS-based devices, which attracts companies that need advanced features without the need for manual configuration<\/p><\/li><li data-start=\"574\" data-end=\"615\"><p data-start=\"576\" data-end=\"615\"><strong data-start=\"0\" data-end=\"13\" data-is-only-node=\"\">\u2022 For whom?<\/strong> Companies with advanced backup needs, long-term data protection or requiring snapshots.<\/p><\/li><li data-start=\"616\" data-end=\"657\"><p data-start=\"618\" data-end=\"657\"><strong data-start=\"0\" data-end=\"11\" data-is-only-node=\"\">\u2022 Cons:<\/strong> higher hardware requirements, more technical configuration.<\/p><\/li><\/ul><h3 data-start=\"664\" data-end=\"680\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Unraid<\/span><\/h3><ul data-start=\"682\" data-end=\"848\"><li data-start=\"682\" data-end=\"764\"><p data-start=\"684\" data-end=\"764\"><strong data-start=\"0\" data-end=\"10\" data-is-only-node=\"\">\u2022 Unraid<\/strong> is an alternative file system for NAS that uses dedicated parity drives, allows for mixing different drives and easy scaling.<\/p><\/li><li data-start=\"765\" data-end=\"806\"><p data-start=\"767\" data-end=\"806\"><strong data-start=\"0\" data-end=\"11\" data-is-only-node=\"\">\u2022 Advantages:<\/strong> flexibility in disk selection, viewing data from odd disks rather than the entire array \u2013 more control.<\/p><\/li><li data-start=\"807\" data-end=\"848\"><p data-start=\"809\" data-end=\"848\"><strong data-start=\"0\" data-end=\"8\" data-is-only-node=\"\">\u2022 But:<\/strong> lower performance when accessing multiple files simultaneously (no striping).<\/p><\/li><\/ul><h3 data-start=\"855\" data-end=\"890\"><span style=\"color: #ff6500; font-size: 20px; text-align: start;\">Cloud + hybrid backup<\/span><\/h3><ul data-start=\"892\" data-end=\"1196\"><li data-start=\"892\" data-end=\"974\"><p data-start=\"894\" data-end=\"974\"><strong data-start=\"0\" data-end=\"39\" data-is-only-node=\"\">\u2022 RAID expansion with cloud copy<\/strong> \u2014 such as Amazon S3, Backblaze B2 or Synology C2 \u2014 provides protection against local failures and allows data to be recovered from another location.<\/p><\/li><li data-start=\"975\" data-end=\"1103\"><p data-start=\"977\" data-end=\"1103\"><strong data-start=\"977\" data-end=\"990\">\u2022 For whom?<\/strong> Companies that want a guarantee that data will survive not only hardware failure, but also fire, theft or ransomware.<\/p><\/li><li data-start=\"1104\" data-end=\"1196\"><p data-start=\"1106\" data-end=\"1196\"><strong data-start=\"1106\" data-end=\"1115\">\u2022 Defects:<\/strong> monthly cost, need for stable internet, planning of data transfers.<\/p><\/li><\/ul><h3 data-start=\"1203\" data-end=\"1233\">\u00a0<\/h3><div><div tabindex=\"-1\"><table data-start=\"1235\" data-end=\"2222\"><thead data-start=\"1235\" data-end=\"1400\"><tr data-start=\"1235\" data-end=\"1400\"><th data-start=\"1235\" data-end=\"1262\" data-col-size=\"sm\">Alternative<\/th><th data-start=\"1262\" data-end=\"1308\" data-col-size=\"sm\">Main function<\/th><th data-start=\"1308\" data-end=\"1357\" data-col-size=\"md\">For whom?<\/th><th data-start=\"1357\" data-end=\"1400\" data-col-size=\"sm\">Defects<\/th><\/tr><\/thead><tbody data-start=\"1567\" data-end=\"2222\"><tr data-start=\"1567\" data-end=\"1730\"><td data-start=\"1567\" data-end=\"1594\" data-col-size=\"sm\">Hybrid RAID (SHR)<\/td><td data-start=\"1594\" data-end=\"1639\" data-col-size=\"sm\">Better space optimization<\/td><td data-col-size=\"md\" data-start=\"1639\" data-end=\"1687\">Synology users, disk expansion<\/td><td data-col-size=\"sm\" data-start=\"1687\" data-end=\"1730\">Lock-in, limited access to equipment<\/td><\/tr><tr data-start=\"1731\" data-end=\"1896\"><td data-start=\"1731\" data-end=\"1758\" data-col-size=\"sm\">ZFS (TrueNAS, QNAP)<\/td><td data-start=\"1758\" data-end=\"1803\" data-col-size=\"sm\">Advanced security and snapshots<\/td><td data-start=\"1803\" data-end=\"1857\" data-col-size=\"md\">Advanced backups, companies needing snapshots<\/td><td data-col-size=\"sm\" data-start=\"1857\" data-end=\"1896\">Higher cost and knowledge required<\/td><\/tr><tr data-start=\"1897\" data-end=\"2059\"><td data-start=\"1897\" data-end=\"1924\" data-col-size=\"sm\">Unraid<\/td><td data-start=\"1924\" data-end=\"1969\" data-col-size=\"sm\">Flexibility in disk selection<\/td><td data-col-size=\"md\" data-start=\"1969\" data-end=\"2017\">Measuring NAS, home labs<\/td><td data-col-size=\"sm\" data-start=\"2017\" data-end=\"2059\">Not optimal performance<\/td><\/tr><tr data-start=\"2060\" data-end=\"2222\"><td data-start=\"2060\" data-end=\"2087\" data-col-size=\"sm\">RAID + cloud backup<\/td><td data-start=\"2087\" data-end=\"2132\" data-col-size=\"sm\">Off-site security<\/td><td data-start=\"2132\" data-end=\"2180\" data-col-size=\"md\">All companies, maximum security<\/td><td data-col-size=\"sm\" data-start=\"2180\" data-end=\"2222\">Fixed cost and internet dependency<\/td><\/tr><\/tbody><\/table><div><h4>\u00a0<span style=\"color: #ff6500; font-size: 20px; text-align: start;\">What to choose?<\/span><\/h4><\/div><\/div><\/div><ul data-start=\"2980\" data-end=\"3156\"><li data-start=\"2247\" data-end=\"2352\"><p data-start=\"2249\" data-end=\"2352\"><strong data-start=\"2249\" data-end=\"2294\">\u2022 Want something simple that works \u201cout of the box\u201d?<\/strong> Choose Synology with SHR if NAS expansion is important.<\/p><\/li><li data-start=\"2353\" data-end=\"2449\"><p data-start=\"2355\" data-end=\"2449\"><strong data-start=\"2355\" data-end=\"2405\">\u2022 Need the best backup and snapshots?<\/strong> Choose ZFS (TrueNAS or QNAP QuTS hero).<\/p><\/li><li data-start=\"2450\" data-end=\"2537\"><p data-start=\"2452\" data-end=\"2537\"><strong data-start=\"2452\" data-end=\"2509\">\u2022 Looking for a flexible and home\/experimental option?<\/strong> Unraid might be right for you.<\/p><\/li><li data-start=\"2538\" data-end=\"2698\"><p data-start=\"2540\" data-end=\"2698\"><strong data-start=\"2540\" data-end=\"2598\">\u2022 Priority \u2013 data safe regardless of disaster?<\/strong> Local RAID + Cloud Copy (e.g. Amazon S3, Backblaze, Synology C2) is the recommended strategy<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-065f2b0 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"065f2b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"133\" data-end=\"183\"><span style=\"color: #ff6500; font-size: 24px; text-align: start;\">RAID is common sense, not luxury<\/span><\/h2><p data-start=\"185\" data-end=\"404\">RAID is not an advanced &quot;gadget&quot; reserved for large corporations, but <strong data-start=\"261\" data-end=\"285\">practical tool<\/strong>which really helps <strong data-start=\"308\" data-end=\"360\">protect data and maintain business continuity<\/strong>. Thanks to a properly selected RAID matrix:<\/p><ul data-start=\"406\" data-end=\"611\"><li data-start=\"406\" data-end=\"466\"><p data-start=\"408\" data-end=\"466\">\u2022 Your company can <strong data-start=\"425\" data-end=\"451\">survive a disk failure<\/strong> without downtime,<\/p><\/li><li data-start=\"467\" data-end=\"529\"><p data-start=\"469\" data-end=\"529\">\u2022 you will avoid losing important documents or project files,<\/p><\/li><li data-start=\"530\" data-end=\"611\"><p data-start=\"532\" data-end=\"611\">\u2022 you will increase the security of your operations while improving system performance.<\/p><\/li><\/ul><p data-start=\"613\" data-end=\"775\">But it is equally important to understand that <strong data-start=\"651\" data-end=\"673\">RAID is not a backup<\/strong> \u2013 therefore the best approach is to combine RAID with a well-planned backup strategy.<\/p><p data-start=\"777\" data-end=\"993\">Regardless of whether you drive <strong data-start=\"811\" data-end=\"891\">an accounting office, a creative agency, a service workshop or an online store<\/strong> \u2013 Data security is not a choice these days, but a must. RAID can be your first line of defense.<\/p><blockquote data-start=\"995\" data-end=\"1252\"><p data-start=\"997\" data-end=\"1252\">If you don&#039;t want to struggle with selecting, configuring and maintaining RAID yourself - We offer<strong data-start=\"1083\" data-end=\"1166\">\u00a0comprehensive implementations and IT consulting for companies of all sizes<\/strong>. We&#039;ll find the right solution, do it right - and give you peace of mind.<\/p><\/blockquote>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Imagine running a company where all your most important data\u2014invoices, contracts, projects, client documents\u2014is stored on a single computer. Everything works smoothly\u2026 until one day your hard drive simply gives up. Sound familiar? Unfortunately, this is one of the most common nightmares for small and medium-sized business owners. That&#039;s why it&#039;s worth understanding the concept of RAID [\u2026]<\/p>","protected":false},"author":4,"featured_media":7820,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[744,746,724,733,740,739,721,735,738,742,732,728,737,449,730,225,734,736,723,743,720,727,741,726,716,729,731,685,227,234,718,711,747],"class_list":["post-7783","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-serwery","tag-co-oznacza-okreslenie-raid","tag-co-to-jest-raid","tag-co-to-jest-raid-5","tag-co-to-znaczy-raid","tag-czy-macierz-raid-5-jest-bezpieczna","tag-czy-raid-1-jest-bezpieczny","tag-czy-raid-1-to-backup","tag-czy-raid-1-to-backup-2","tag-czy-raid-10-jest-najbezpieczniejszy","tag-czy-raid-jest-bezpieczny","tag-czy-raid-jest-bezpieczny-dla-ludzi","tag-czym-jest-raid","tag-czym-sie-rozni-raid-0-od-raid-1","tag-informatyk-ozarow-mazowiecki","tag-it","tag-it-dla-firm","tag-jaki-jest-najbezpieczniejszy-raid","tag-jaki-raid-dla-2-dyskow-2","tag-jakie-mamy-macierze-raid","tag-jakie-sa-rodzaje-raid","tag-jakie-sa-typy-raid","tag-ktora-wersja-raid-jest-najlepsza","tag-ktory-raid-jest-najbezpieczniejszy-2","tag-ktory-raid-jest-najbezpieczniejszy","tag-ktory-raid-wybrac","tag-na-czym-polega-raid","tag-obsluga-informatyczna-firm","tag-opieka-informatyczna-dla-firm","tag-pomoc-informatyczna","tag-pomoc-it-dla-firm","tag-raid","tag-raid-co-to-znaczy","tag-raid-z-3-dyskow"],"_links":{"self":[{"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/posts\/7783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/comments?post=7783"}],"version-history":[{"count":10,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/posts\/7783\/revisions"}],"predecessor-version":[{"id":7806,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/posts\/7783\/revisions\/7806"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/media\/7820"}],"wp:attachment":[{"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/media?parent=7783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/categories?post=7783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prosteit.pl\/en\/wp-json\/wp\/v2\/tags?post=7783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}