Re: [zfs-discuss] Can you manually trigger spares?
On Mon, 8 Mar 2010, Tim Cook wrote: Is there a way to manually trigger a hot spare to kick in? Yes - just use 'zpool replace fserv 12589257915302950264 c3t6d0'. That's all the fma service does anyway. If you ever get your drive to come back online, the fma service should recognize that and resilver it, switching the spare back to AVAIL. Regards, markm ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Can you manually trigger spares?
Hi Tim, I'm not sure why your spare isn't kicking in, but you could manually replace the failed disk with the spare like this: # zpool replace fserv c7t5d0 c3t6d0 If you want to run with the spare for awhile, then you can also detach the original failed disk like this: # zpool detach fserv c7t5d0 I don't know why the device name changed either. See a similar example below. Thanks, Cindy # zpool create -f tank raidz2 c2t0d0 c2t1d0 c2t2d0 spare c2t3d0 # zpool status tank pool: tank state: ONLINE scrub: none requested config: NAMESTATE READ WRITE CKSUM tankONLINE 0 0 0 raidz2-0 ONLINE 0 0 0 c2t0d0 ONLINE 0 0 0 c2t1d0 ONLINE 0 0 0 c2t2d0 ONLINE 0 0 0 spares c2t3d0AVAIL # zpool replace tank c2t2d0 c2t3d0 # zpool status tank pool: tank state: ONLINE scrub: resilver completed after 0h0m with 0 errors on Mon Mar 8 12:03:37 2010 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 raidz2-0ONLINE 0 0 0 c2t0d0ONLINE 0 0 0 c2t1d0ONLINE 0 0 0 spare-2 ONLINE 0 0 0 c2t2d0 ONLINE 0 0 0 c2t3d0 ONLINE 0 0 0 91.5K resilvered spares c2t3d0 INUSE currently in use errors: No known data errors # zpool detach tank c2t2d0 # zpool status tank pool: tank state: ONLINE scrub: resilver completed after 0h0m with 0 errors on Mon Mar 8 12:03:37 2010 config: NAMESTATE READ WRITE CKSUM tankONLINE 0 0 0 raidz2-0 ONLINE 0 0 0 c2t0d0 ONLINE 0 0 0 c2t1d0 ONLINE 0 0 0 c2t3d0 ONLINE 0 0 0 91.5K resilvered errors: No known data errors On 03/08/10 11:33, Tim Cook wrote: Is there a way to manually trigger a hot spare to kick in? Mine doesn't appear to be doing so. What happened is I exported a pool to reinstall solaris on this system. When I went to re-import it, one of the drives refused to come back online. So, the pool imported degraded, but it doesn't seem to want to use the hot spare... I've tried triggering a scrub to see if that would give it a kick, but no-go. r...@fserv:~$ zpool status pool: fserv state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-2Q scrub: scrub completed after 3h19m with 0 errors on Mon Mar 8 02:28:08 2010 config: NAME STATE READ WRITE CKSUM fserv DEGRADED 0 0 0 raidz2-0DEGRADED 0 0 0 c2t0d0ONLINE 0 0 0 c2t1d0ONLINE 0 0 0 c2t2d0ONLINE 0 0 0 c2t3d0ONLINE 0 0 0 c2t4d0ONLINE 0 0 0 c2t5d0ONLINE 0 0 0 c3t0d0ONLINE 0 0 0 c3t1d0ONLINE 0 0 0 c3t2d0ONLINE 0 0 0 c3t3d0ONLINE 0 0 0 c3t4d0ONLINE 0 0 0 12589257915302950264 UNAVAIL 0 0 0 was /dev/dsk/c7t5d0s0 spares c3t6d0 AVAIL --Tim ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Can you manually trigger spares?
Tim Cook wrote: Is there a way to manually trigger a hot spare to kick in? Mine doesn't appear to be doing so. What happened is I exported a pool to reinstall solaris on this system. When I went to re-import it, one of the drives refused to come back online. So, the pool imported degraded, but it doesn't seem to want to use the hot spare... I've tried triggering a scrub to see if that would give it a kick, but no-go. Have you tried zpool replace (you might have to remove the spare from the pool first)? Is the spare at least as big as the faulted drive? If not, replace would fail and you'd see why. -- Ian. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Can you manually trigger spares?
On Mon, Mar 8, 2010 at 3:33 PM, Tim Cook t...@cook.ms wrote: Is there a way to manually trigger a hot spare to kick in? Mine doesn't appear to be doing so. What happened is I exported a pool to reinstall solaris on this system. When I went to re-import it, one of the drives refused to come back online. So, the pool imported degraded, but it doesn't seem to want to use the hot spare... I've tried triggering a scrub to see if that would give it a kick, but no-go. uts/common/fs/zfs/vdev.c says: /* * If we fail to open a vdev during an import, we mark it as * not available, which signifies that it was never there to * begin with. Failure to open such a device is not considered * an error. */ If there is no error then the fault management code probably doesn't kick in and autoreplace isn't triggered. r...@fserv:~$ zpool status pool: fserv state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-2Q scrub: scrub completed after 3h19m with 0 errors on Mon Mar 8 02:28:08 2010 config: NAME STATE READ WRITE CKSUM fserv DEGRADED 0 0 0 raidz2-0DEGRADED 0 0 0 c2t0d0ONLINE 0 0 0 c2t1d0ONLINE 0 0 0 c2t2d0ONLINE 0 0 0 c2t3d0ONLINE 0 0 0 c2t4d0ONLINE 0 0 0 c2t5d0ONLINE 0 0 0 c3t0d0ONLINE 0 0 0 c3t1d0ONLINE 0 0 0 c3t2d0ONLINE 0 0 0 c3t3d0ONLINE 0 0 0 c3t4d0ONLINE 0 0 0 12589257915302950264 UNAVAIL 0 0 0 was /dev/dsk/c7t5d0s0 spares c3t6d0 AVAIL That crazy device name is guid (you can see that with eg. zdb -l /dev/rdsk/c3t1d0s0) I was able to replicate your situation here. # uname -a SunOS osol-dev 5.11 snv_133 i86pc i386 i86pc Solaris # zpool status tank pool: tank state: ONLINE scrub: none requested config: NAMESTATE READ WRITE CKSUM tankONLINE 0 0 0 mirror-0 ONLINE 0 0 0 c6t0d0 ONLINE 0 0 0 c6t1d0 ONLINE 0 0 0 cache c6t2d0ONLINE 0 0 0 spares c6t3d0AVAIL errors: No known data errors # zpool export tank removed c6t1d0 # zpool import tank # zpool status tank pool: tank state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-2Q scrub: none requested config: NAME STATE READ WRITE CKSUM tank DEGRADED 0 0 0 mirror-0 DEGRADED 0 0 0 6462738093222634405 UNAVAIL 0 0 0 was /dev/dsk/c6t0d0s0 c6t1d0 ONLINE 0 0 0 cache c6t2d0 ONLINE 0 0 0 spares c6t3d0 AVAIL errors: No known data errors # zpool get autoreplace tank NAME PROPERTY VALUESOURCE tank autoreplace on local # fmdump -e -t 08Mar2010 TIME CLASS As you can see, no error report was posted. You can try to import the pool again and see if `fmdump -e` lists any errors afterwards. You use the spare with `zpool replace`. -- Giovanni Tirloni sysdroid.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
