Re: ZFS with Linux: An Open Plea

[Ricardo Correia]

Ricardo Correia wrote:
> That FAQ entry is outdated, ZFS can recover from metadata corruption on
> non-replicated pools for a long time already.

Just a clarification, ZFS not only detects metadata corruption through
the use of checksums but, since it keeps 2-3 copies of each metadata
block on-disk (even on non-replicated pools), it also rewrites the
corrupted blocks, effectively repairing the corruption.

All of this is done transparently to the user but, of course, it's
possible to see a report of checksum failures.

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