Forcing full file read in ZFS even when checksum error
encountered
Dag-Erling Smørgrav
des at des.no
Tue Feb 5 17:22:39 UTC 2008
Joe Peterson <joe at skyrush.com> writes:
> Dag-Erling Smørgrav <des at des.no> writes:
> > There is now way to "read the bad data" since an unrecoverable
> > checksum error means that ZFS has no idea which of the multiple
> > version of the affected block is the right one.
> Nope, no mirror, no RAIDZ - just one partition. But as far as I know, there
> were no read errors, just a checksum error.
A checksum error results from a read error. Check your drive's SMART
error log if it has one. It might not be detectable in a surface scan,
as the damaged sector will be automatically reassigned if it's written
to (which ZFS may very well have done)
DES
--
Dag-Erling Smørgrav - des at des.no
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