I'm living with this error for almost 4 months and probably have record
number of checksum errors:
core# zpool status -xv
pool: box5
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: none requested
config:
NAME STATE READ WRITE CKSUM
box5 ONLINE 0 0 856
mirror ONLINE 0 0 428
c1d0 ONLINE 0 0 856
c2d0 ONLINE 0 0 856
mirror ONLINE 0 0 428
c2d1 ONLINE 0 0 856
c1d1 ONLINE 0 0 856
errors: Permanent errors have been detected in the following files:
box5:<0x0>
I've Sol 10 U5 though.
--
Rustam.
Jürgen Keil wrote:
I ran a scrub on a root pool after upgrading to snv_94, and got checksum errors:
Hmm, after reading this, I started a zpool scrub on my mirrored pool,
on a system that is running post snv_94 bits: It also found checksum errors
# zpool status files
pool: files
state: DEGRADED
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: scrub completed after 0h46m with 9 errors on Fri Jul 18 13:33:56 2008
config:
NAME STATE READ WRITE CKSUM
files DEGRADED 0 0 18
mirror DEGRADED 0 0 18
c8t0d0s6 DEGRADED 0 0 36 too many errors
c9t0d0s6 DEGRADED 0 0 36 too many errors
errors: No known data errors
Addding the -v option to zpool status returned:
errors: Permanent errors have been detected in the following files:
<metadata>:<0x0>
OTOH, trying to verify checksums with zdb -c didn't find any problems:
# zdb -cvv files
Traversing all blocks to verify checksums and verify nothing leaked ...
No leaks (block sum matches space maps exactly)
bp count: 2804880
bp logical: 121461614592 avg: 43303
bp physical: 84585684992 avg: 30156 compression: 1.44
bp allocated: 85146115584 avg: 30356 compression: 1.43
SPA allocated: 85146115584 used: 79.30%
951.08u 419.55s 2:24:34.32 15.8%
#
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