I am using ZFS on FreeBSD 7.0_beta3. This is the first time i have
used ZFS and I have run into something that I am not sure if this is
normal, but am very concerned about.
SYSTEM INFO:
hp 320s (storage array)
12 disks (750GB each)
2GB RAM
1GB flash drive (running the OS)
When I take a disk offline and replace it with my spare, after the
spare rebuild it shows there are numerous errors. see below:
scrub: resilver completed with 946 errors on Thu Dec 6 15:15:32 2007
config:
NAME STATE READ WRITE CKSUM
fatty DEGRADED 0 0 3.71K
raidz2 DEGRADED 0 0 3.71K
da0 ONLINE 0 0 0
da1 ONLINE 0 0 0
da2 ONLINE 0 0 0
da3 ONLINE 0 0 300
da4 ONLINE 0 0 0
da5 ONLINE 0 0 0
da6 ONLINE 0 0 253
da7 ONLINE 0 0 0
da8 ONLINE 0 0 0
spare DEGRADED 0 0 0
da9 OFFLINE 0 0 0
da11 ONLINE 0 0 0
da10 ONLINE 0 0 0
spares
da11 INUSE currently in use
errors: 801 data errors, use '-v' for a list
After I detach the spare da11 and bring da9 back online all the errors
go away.
pool: fatty
state: ONLINE
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the
errors
using 'zpool clear' or replace the device with 'zpool replace'.
see: http://www.sun.com/msg/ZFS-8000-9P
scrub: resilver completed with 0 errors on Thu Dec 6 15:57:23 2007
config:
NAME STATE READ WRITE CKSUM
fatty ONLINE 0 0 3.71K
raidz2 ONLINE 0 0 3.71K
da0 ONLINE 0 0 0
da1 ONLINE 0 0 0
da2 ONLINE 0 0 0
da3 ONLINE 0 0 300
da4 ONLINE 0 0 0
da5 ONLINE 0 0 0
da6 ONLINE 0 0 253
da7 ONLINE 0 0 0
da8 ONLINE 0 0 0
da9 ONLINE 0 0 0
da10 ONLINE 0 0 0
spares
da11 AVAIL
errors: No known data errors
Thanks
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