ZFS scrub 'repaired' pool with no chksum or read errors?
kpielorz_lst at tdx.co.uk
Fri Jun 10 08:55:43 UTC 2011
I'm running FreeBSD-8.2R amd64 w/4Gb of ECC RAM on a machine used for
'offsite' backups (that are copied to it using zfs send/receive).
I scrub this machine every now and again (about once a month) - recently
this resulted in the following output after the scrub completed:
# zpool status
scrub: scrub completed after 2h49m with 0 errors on Thu Jun 9 17:09:31
NAME STATE READ WRITE CKSUM
vol ONLINE 0 0 0
raidz1 ONLINE 0 0 0
ada0 ONLINE 0 0 0 256K repaired
ada1 ONLINE 0 0 0
ada2 ONLINE 0 0 0
errors: No known data errors
Should I be worried there was 256k of 'repairs' done, even though there
were no checksum errors, or read errors detected?
The console logged no errors - and nothing shows in syslog.
The machine is always cleanly shut down - and the drives all appear fine
from a SMART point of view - I'm just a bit concerned as to where the
repairs came from - as ZFS doesn't seem to know (or be able to tell me)
More information about the freebsd-fs