I did a zpool scrub recently, and while it was running it reported errors and
woed
about restoring from backup. When the scrub is complete, it reports finishing
with
0 errors though. On the next scrub some other errors are reported in different
files.
"iostat -xne" does report a few errors (1 s/w on each of 2 mirrored drives, and
2 h/w
errors on one of the drives).
Any ideas? Is it a cosmetic problem or a crawling-hiding bug in my hardware and
I should go about replacing something somewhere? I don't see such behavior on
any other servers around...
Thanks for ideas,
//Jim
"zpool status -v" while scrub is running:
pool: rpool
state: ONLINE
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see: http://www.sun.com/msg/ZFS-8000-8A
scrub: scrub in progress for 0h1m, 29.45% done, 0h2m to go
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror ONLINE 0 0 0
c3t2d0s0 ONLINE 0 0 0
c3t3d0s0 ONLINE 0 0 0
errors: Permanent errors have been detected in the following files:
//dev/dsk/c3t2d0s0
//dev/dsk/c3t3d0s0
That has previously complained about "//dev/dsk" having problems, although both
the directory and device files are accessible well.
"zpool status -v" when scrub has finished:
pool: rpool
state: ONLINE
scrub: scrub completed after 0h4m with 0 errors on Wed Jul 29 18:23:43 2009
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror ONLINE 0 0 0
c3t2d0s0 ONLINE 0 0 0
c3t3d0s0 ONLINE 0 0 0
errors: No known data errors
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