Answers below...
Tuomas Leikola wrote:
The endless resilver problem still persists on OI b147. Restarts when it
should complete.
I see no other solution than to copy the data to safety and recreate the
array. Any hints would be appreciated as that takes days unless i can
stop or pause the resilvering.
On Mon, Sep 27, 2010 at 1:13 PM, Tuomas Leikola
<tuomas.leik...@gmail.com <mailto:tuomas.leik...@gmail.com>> wrote:
Hi!
My home server had some disk outages due to flaky cabling and
whatnot, and started resilvering to a spare disk. During this
another disk or two dropped, and were reinserted into the array. So
no devices were actually lost, they just were intermittently away
for a while each.
The situation is currently as follows:
pool: tank
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 in progress for 5h33m, 22.47% done, 19h10m to go
config:
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
c11t1d0p0 ONLINE 0 0 0
c11t2d0 ONLINE 0 0 5
c11t6d0p0 ONLINE 0 0 0
spare-3 ONLINE 0 0 0
c11t3d0p0 ONLINE 0 0 0 106M
resilvered
c9d1 ONLINE 0 0 0 104G
resilvered
c11t4d0p0 ONLINE 0 0 0
c11t0d0p0 ONLINE 0 0 0
c11t5d0p0 ONLINE 0 0 0
c11t7d0p0 ONLINE 0 0 0 93.6G
resilvered
raidz1-2 ONLINE 0 0 0
c6t2d0 ONLINE 0 0 0
c6t3d0 ONLINE 0 0 0
c6t4d0 ONLINE 0 0 0 2.50K
resilvered
c6t5d0 ONLINE 0 0 0
c6t6d0 ONLINE 0 0 0
c6t7d0 ONLINE 0 0 0
c6t1d0 ONLINE 0 0 1
logs
/dev/zvol/dsk/rpool/log ONLINE 0 0 0
cache
c6t0d0p0 ONLINE 0 0 0
spares
c9d1 INUSE currently in use
errors: No known data errors
And this has been going on for a week now, always restarting when it
should complete.
The questions in my mind atm:
1. How can i determine the cause for each resilver? Is there a log?
If you're running OI b147 then you should be able to do the following:
# echo "::zfs_dbgmsg" | mdb -k > /var/tmp/dbg.out
Send me the output.
2. Why does it resilver the same data over and over, and not just
the changed bits?
If you're having drives fail prior to the initial resilver finishing
then it will restart and do all the work over again. Are drives still
failing randomly for you?
3. Can i force remove c9d1 as it is no longer needed but c11t3 can
be resilvered instead?
You can detach the spare and let the resilver work on only c11t3. Can
you send me the output of 'zdb -dddd tank 0'?
Thanks,
George
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