On Mar 3, 2013 5:23 AM, "Lars Tobias Skjong-Børsting" <lists AT snota DOT no> wrote:
>
> On 3/3/13 8:02 AM, Trey Dockendorf wrote:
>
> > However the checksumming in ZFS only takes place on RAIDZ sets.
>
> ZFS actually always checksums and error detection, also on RAID1 and
> RAID0. For RAID0 there is no redundant data to attempt correction with.
> For RAID1 there is a copy of the data to use for correction.
>
> > ZFS mirroring (RAID 1) does not do checksum verification.
>
> That's wrong, it certainly does, also with error correction.
>
> Read up on it here:
> https://blogs.oracle.com/bonwick/entry/zfs_end_to_end_data
>
> --
> Best regards,
> Lars Tobias
>
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My mistake, not sure where that incorrect assumption came from.  So a mirror would achieve the desired result of OP.

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