What is RAID and what are the different RAID modes? - StarTech.com IT Pro Community
<main> <article class="userContent"> <p><strong>Note: </strong>Not all StarTech.com devices support each of the RAID modes described below. For more information on the RAID modes that your device supports, refer to the manual or the StarTech.com product page.</p><p>Redundant Array of Independent Disks (RAID) is a virtual disk technology that combines multiple physical drives into one unit. RAID can create redundancy, improve performance, or do both.</p><p>RAID should not be considered a replacement for backing up your data. If critical data is going onto a RAID array, it should be backed up to another physical drive or logical set of drives.</p><p>The following are terms that are normally used in connection with RAID:</p><ul><li>Striping: data is split between multiple disks.</li><li>Mirroring: data is mirrored between multiple disks.</li><li>Parity: also referred to as a checksum. Parity is a calculated value used to mathematically rebuild data.</li></ul><p>Different RAID levels exist for different application requirements.</p><p>Refer to the following table for the list of RAID modes offered by some StarTech.com products:</p><div class="embedExternal embedImage display-large float-none"> <div class="embedExternal-content"> <a class="embedImage-link" href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fus.v-cdn.net%2F6035386%2Fuploads%2FAX3JTWN6I1KE%2Fimage.png" rel="nofollow noreferrer noopener ugc" target="_blank"> <img class="embedImage-img" src="https://us.v-cdn.net/6035386/uploads/AX3JTWN6I1KE/image.png" alt="image.png" height="1165" width="832" loading="lazy" data-display-size="large" data-float="none" srcset="https://us.v-cdn.net/cdn-cgi/image/fit=scale-down,width=10/https://us.v-cdn.net/6035386/uploads/AX3JTWN6I1KE/image.png 10w, https://us.v-cdn.net/cdn-cgi/image/fit=scale-down,width=300/https://us.v-cdn.net/6035386/uploads/AX3JTWN6I1KE/image.png 300w, https://us.v-cdn.net/cdn-cgi/image/fit=scale-down,width=800/https://us.v-cdn.net/6035386/uploads/AX3JTWN6I1KE/image.png 800w, https://us.v-cdn.net/cdn-cgi/image/fit=scale-down,width=1200/https://us.v-cdn.net/6035386/uploads/AX3JTWN6I1KE/image.png 1200w, https://us.v-cdn.net/cdn-cgi/image/fit=scale-down,width=1600/https://us.v-cdn.net/6035386/uploads/AX3JTWN6I1KE/image.png 1600w, https://us.v-cdn.net/6035386/uploads/AX3JTWN6I1KE/image.png"></img></a> </div> </div> <p></p><p><br></p><div class="blockquote"><div class="blockquote-content"><p class="blockquote-line">This FAQ applies to these products: <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fhdd%2F25s22m2ngffr" rel="nofollow noreferrer ugc">25S22M2NGFFR</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fhdd%2F25sat22msat" rel="nofollow noreferrer ugc">25SAT22MSAT</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fecesat32" rel="nofollow noreferrer ugc">ECESAT32</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fhdd%2Fhsb225s3r" rel="nofollow noreferrer ugc">HSB225S3R</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fmpexsata22i" rel="nofollow noreferrer ugc">MPEXSATA22I</a> <a href="https://community.startech.com/home/leaving?allowTrusted=1&target=https%3A%2F%2Fwww.startech.com%2Fen-us%2Fcards-adapters%2Fpcisata4r1" rel="nofollow noreferrer ugc">PCISATA4R1</a> <a 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