Thanks for taking an interest. Answers below. On Wed, Sep 29, 2010 at 9:01 PM, George Wilson <george.r.wil...@oracle.com>wrote:
> On Mon, Sep 27, 2010 at 1:13 PM, Tuomas Leikola > <tuomas.leik...@gmail.com<mailto: >> tuomas.leik...@gmail.com>> wrote: >> > >> (continuous resilver loop) 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. Sending verbose output in a separate email. I'm not very familiar with this but it does show some "restarting" lines. > 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? > > > Drives haven't been dropping since the initial incidents. It's run to completion a few times now without (visible) issues with the drives. Then again I think there is some magic to reinsert a device back into the array if there is some intermittent SATA disconnection. > >> 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'? Detach commands complain there's not enough replicas. Of course I can physically remove the device, at which point a scrub would suffice (the disks must be relatively well up-to-date by now..) Sending zdb output in a separate mail as soon as it completes..
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