Comment by Juke_Ellington
3 years ago
It makes sense if you keep the old disks around until they kick it. You can always have 3-5 copies around in a decently readable state
3 years ago
It makes sense if you keep the old disks around until they kick it. You can always have 3-5 copies around in a decently readable state
If you're not periodically checking the data for corruption, and only moving from a single drive to a replacement single drive, eventually you'll have some corrupted data which gets copied from drive to drive without you noticing.
4 TB drives are dirt cheap. If someone would really be "lost" without this data, having some redundancy would be inexpensive and easy.
If stored on ZFS, at least it would be validated each time it was copied.
Also, run zpool scrub regularly to detect and repair any corruption early.
If you keep a ZFS mirror of the most-recent N drives, and store them separately, that should be pretty good.
I forget how ZFS behaves if a mirror is missing drives though, if some are off-site. Hopefully it's smart enough to let you do that and just rotate through.
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