I have configured a test system with a mirrored rpool and one hot spare. I
powered the systems off, pulled one of the disks from rpool to simulate a
hardware failure.
The hot spare is not activating automatically. Is there something more i
should have done to make this work ?
pool: rpool
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
rpool DEGRADED 0 0 0
mirror DEGRADED 0 0 0
c0d0s0 ONLINE 0 0 0
c0d1s0 UNAVAIL 0 0 0 cannot open
spares
c1d1s0 AVAIL
errors: No known data errors
Thanks
-Scot
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An interesting interpretation of using hot spares. Could it be that the hot-spare code only fires if the disk goes down whilst the pool is active? hm. Nathan. Scot Ballard wrote:> I have configured a test system with a mirrored rpool and one hot spare. > I powered the systems off, pulled one of the disks from rpool to > simulate a hardware failure. > > The hot spare is not activating automatically. Is there something more > i should have done to make this work ? > > > pool: rpool > 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 > rpool DEGRADED 0 0 0 > mirror DEGRADED 0 0 0 > c0d0s0 ONLINE 0 0 0 > c0d1s0 UNAVAIL 0 0 0 cannot open > spares > c1d1s0 AVAIL > > errors: No known data errors > > > > Thanks > > > -Scot > > > ------------------------------------------------------------------------ > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss-- ////////////////////////////////////////////////////////////////// // Nathan Kroenert nathan.kroenert at sun.com // // Systems Engineer Phone: +61 3 9869-6255 // // Sun Microsystems Fax: +61 3 9869-6288 // // Level 7, 476 St. Kilda Road Mobile: 0419 305 456 // // Melbourne 3004 Victoria Australia // //////////////////////////////////////////////////////////////////
What software are you running? There was a bug where offline device failure did not trigger hot spares, but that should be fixed now (at least in OpenSolaris, not sure about s10u6). - Eric On Wed, Jan 21, 2009 at 09:57:42AM +1100, Nathan Kroenert wrote:> An interesting interpretation of using hot spares. > > Could it be that the hot-spare code only fires if the disk goes down > whilst the pool is active? > > hm. > > Nathan. > > Scot Ballard wrote: > > I have configured a test system with a mirrored rpool and one hot spare. > > I powered the systems off, pulled one of the disks from rpool to > > simulate a hardware failure. > > > > The hot spare is not activating automatically. Is there something more > > i should have done to make this work ? > > > > > > pool: rpool > > 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 > > rpool DEGRADED 0 0 0 > > mirror DEGRADED 0 0 0 > > c0d0s0 ONLINE 0 0 0 > > c0d1s0 UNAVAIL 0 0 0 cannot open > > spares > > c1d1s0 AVAIL > > > > errors: No known data errors > > > > > > > > Thanks > > > > > > -Scot > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > zfs-discuss mailing list > > zfs-discuss at opensolaris.org > > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > > -- > ////////////////////////////////////////////////////////////////// > // Nathan Kroenert nathan.kroenert at sun.com // > // Systems Engineer Phone: +61 3 9869-6255 // > // Sun Microsystems Fax: +61 3 9869-6288 // > // Level 7, 476 St. Kilda Road Mobile: 0419 305 456 // > // Melbourne 3004 Victoria Australia // > ////////////////////////////////////////////////////////////////// > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss-- Eric Schrock, Fishworks http://blogs.sun.com/eschrock