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<blockquote data-quote="CyberSimian" data-source="post: 1139232" data-attributes="member: 141969">As I understand it, the Western Digital Red disks are specifically designed for NAS use, and do include some protection against the affects of vibration.(1) I believe that for the previous generation of Red disks, WD recommended that no more than five disks should be used in a single NAS (so your DS1512 would be OK).(2) With the current generation of Red disks, the limit recommended by WD has been increased to eight disks in a single NAS.Whether the vibration protection actually makes a difference is difficult to judge -- when a disk malfunctions, there is unlikely to be a clear indication as to the cause.&nbsp; I think that there is a more advanced (and costly!) &quot;pro&quot; version of the Red disks, and an even more expensive &quot;enterprise&quot; version (not sure what colour that is!); these presumably have better vibration protection.I was happy to go with the &quot;standard&quot; (cheaper) Red disks for my NAS (a DS1515+).&nbsp; But I guess it comes down to the value of your data, how many backups you keep, and your assessment of the risks. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused&nbsp; &nbsp; :confused:" loading="lazy" data-shortname=":confused:" />-- from CyberSimian in the UK</blockquote>

[QUOTE="CyberSimian, post: 1139232, member: 141969"] As I understand it, the Western Digital Red disks are specifically designed for NAS use, and do include some protection against the affects of vibration. (1) I believe that for the [I]previous[/I] generation of Red disks, WD recommended that [I]no more than five disks[/I] should be used in a single NAS (so your DS1512 would be OK). (2) With the [I]current[/I] generation of Red disks, the limit recommended by WD has been increased to [I]eight disks[/I] in a single NAS. Whether the vibration protection actually makes a difference is difficult to judge -- when a disk malfunctions, there is unlikely to be a clear indication as to the cause. I think that there is a more advanced (and costly!) "pro" version of the Red disks, and an even more expensive "enterprise" version (not sure what colour that is!); these presumably have better vibration protection. I was happy to go with the "standard" (cheaper) Red disks for my NAS (a DS1515+). But I guess it comes down to the value of your data, how many backups you keep, and your assessment of the risks. :confused: -- from CyberSimian in the UK [/QUOTE]

Verification