FYI (large devices = looooonnngg processing times)

[Tom Buskey]

ZFS added RAIDZ3 (triple parity) was because the likelihood of hitting
another error before a resilver finishes is likely with > 3TB and current
ECC on drives today.

If you're using 4 TB drives, you should be using double parity (RAID6 or 3
way mirrors).




On Sat, Apr 27, 2013 at 7:50 PM, Michael ODonnell <
michael.odonnell at comcast.net> wrote:

>
>
> Even on just a silly little RAID1 mirror on a multi-Tb
> array I dread seeing the various messages announcing
> "routine" maintenance and diagnostic operations as
> they take forever and don't come for free, resource-wise...
>
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