Thomas Burgess wrote:
I scrub once a week.
I think the general rule is:
once a week for consumer grade drives
once a month for enterprise grade drives.
and before any planned operation which will reduce your
redundancy/resilience, such as swapping out a disk for a new larger one
when growing a pool. The resulting resilver will read all the data in
the datasets in order to reconstruct the new disk, some of which might
not have been read for ages (or since the last scrub), and that's not
the ideal time to discover your existing copy of some blocks went bad
some time back. Better to discover this before you reduce the pool
redundancy/resilience, whilst it's still fixable.
--
Andrew
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