out of HDD space - zfs degraded
Jeremy Chadwick
freebsd at jdc.parodius.com
Sat Oct 2 14:19:24 UTC 2010
On Sat, Oct 02, 2010 at 09:43:30AM -0400, Dan Langille wrote:
> Overnight I was running a zfs send | zfs receive (both within the
> same system / zpool). The system ran out of space, a drive went off
> line, and the system is degraded.
>
> This is a raidz2 array running on FreeBSD 8.1-STABLE #0: Sat Sep 18
> 23:43:48 EDT 2010.
>
> The following logs are also available at
> http://www.langille.org/tmp/zfs-space.txt <- no line wrapping
>
> This is what was running:
>
> # time zfs send storage/bacula at transfer | mbuffer | zfs receive
> storage/compressed/bacula-mbuffer
> in @ 0.0 kB/s, out @ 0.0 kB/s, 3670 GB total, buffer 100%
> fullcannot receive new filesystem stream: out of space
> mbuffer: error: outputThread: error writing to <stdout> at offset
> 0x395917c4000: Broken pipe
>
> summary: 3670 GByte in 10 h 40 min 97.8 MB/s
> mbuffer: warning: error during output to <stdout>: Broken pipe
> warning: cannot send 'storage/bacula at transfer': Broken pipe
>
> real 640m48.423s
> user 8m52.660s
> sys 211m40.862s
>
>
> Looking in the logs, I see this:
>
> Oct 2 00:50:53 kraken kernel: (ada0:siisch0:0:0:0): lost device
> Oct 2 00:50:54 kraken kernel: siisch0: Timeout on slot 30
> Oct 2 00:50:54 kraken kernel: siisch0: siis_timeout is 00040000 ss
> 40000000 rs 40000000 es 00000000 sts 801f0040 serr 00000000
> Oct 2 00:50:54 kraken kernel: siisch0: Error while READ LOG EXT
> Oct 2 00:50:55 kraken kernel: siisch0: Timeout on slot 30
> Oct 2 00:50:55 kraken kernel: siisch0: siis_timeout is 00040000 ss
> 40000000 rs 40000000 es 00000000 sts 801f0040 serr 00000000
> Oct 2 00:50:55 kraken kernel: siisch0: Error while READ LOG EXT
> Oct 2 00:50:56 kraken kernel: siisch0: Timeout on slot 30
> Oct 2 00:50:56 kraken kernel: siisch0: siis_timeout is 00040000 ss
> 40000000 rs 40000000 es 00000000 sts 801f0040 serr 00000000
> Oct 2 00:50:56 kraken kernel: siisch0: Error while READ LOG EXT
> Oct 2 00:50:57 kraken kernel: siisch0: Timeout on slot 30
> Oct 2 00:50:57 kraken kernel: siisch0: siis_timeout is 00040000 ss
> 40000000 rs 40000000 es 00000000 sts 801f0040 serr 00000000
> Oct 2 00:50:57 kraken kernel: siisch0: Error while READ LOG EXT
> Oct 2 00:50:58 kraken kernel: siisch0: Timeout on slot 30
> Oct 2 00:50:58 kraken kernel: siisch0: siis_timeout is 00040000 ss
> 40000000 rs 40000000 es 00000000 sts 801f0040 serr 00000000
> Oct 2 00:50:58 kraken kernel: siisch0: Error while READ LOG EXT
> Oct 2 00:50:59 kraken root: ZFS: vdev I/O failure, zpool=storage
> path=/dev/gpt/disk06-live offset=270336 size=8192 error=6
>
> Oct 2 00:50:59 kraken kernel: (ada0:siisch0:0:0:0): Synchronize
> cache failed
> Oct 2 00:50:59 kraken kernel: (ada0:siisch0:0:0:0): removing device entry
>
> Oct 2 00:50:59 kraken root: ZFS: vdev I/O failure, zpool=storage
> path=/dev/gpt/disk06-live offset=2000187564032 size=8192 error=6
> Oct 2 00:50:59 kraken root: ZFS: vdev I/O failure, zpool=storage
> path=/dev/gpt/disk06-live offset=2000187826176 size=8192 error=6
>
> $ zpool status
> pool: storage
> state: DEGRADED
> scrub: scrub in progress for 5h32m, 17.16% done, 26h44m to go
> config:
>
> NAME STATE READ WRITE CKSUM
> storage DEGRADED 0 0 0
> raidz2 DEGRADED 0 0 0
> gpt/disk01-live ONLINE 0 0 0
> gpt/disk02-live ONLINE 0 0 0
> gpt/disk03-live ONLINE 0 0 0
> gpt/disk04-live ONLINE 0 0 0
> gpt/disk05-live ONLINE 0 0 0
> gpt/disk06-live REMOVED 0 0 0
> gpt/disk07-live ONLINE 0 0 0
>
> $ zfs list
> NAME USED AVAIL REFER MOUNTPOINT
> storage 6.97T 1.91T 1.75G /storage
> storage/bacula 4.72T 1.91T 4.29T /storage/bacula
> storage/compressed 2.25T 1.91T 46.9K /storage/compressed
> storage/compressed/bacula 2.25T 1.91T 42.7K /storage/compressed/bacula
> storage/pgsql 5.50G 1.91T 5.50G /storage/pgsql
>
> $ sudo camcontrol devlist
> Password:
> <Hitachi HDS722020ALA330 JKAOA28A> at scbus2 target 0 lun 0 (pass1,ada1)
> <Hitachi HDS722020ALA330 JKAOA28A> at scbus3 target 0 lun 0 (pass2,ada2)
> <Hitachi HDS722020ALA330 JKAOA28A> at scbus4 target 0 lun 0 (pass3,ada3)
> <Hitachi HDS722020ALA330 JKAOA28A> at scbus5 target 0 lun 0 (pass4,ada4)
> <Hitachi HDS722020ALA330 JKAOA28A> at scbus6 target 0 lun 0 (pass5,ada5)
> <Hitachi HDS722020ALA330 JKAOA28A> at scbus7 target 0 lun 0 (pass6,ada6)
> <ST380815AS 4.AAB> at scbus8 target 0 lun 0 (pass7,ada7)
> <TSSTcorp CDDVDW SH-S223C SB01> at scbus9 target 0 lun 0 (cd0,pass8)
> <WDC WD1600AAJS-75M0A0 02.03E02> at scbus10 target 0 lun 0 (pass9,ada8)
>
> I'm not yet sure if the drive is fully dead or not. This is not a
> hot-swap box.
It looks to me like the disk labelled gpt/disk06-live literally stopped
responding to commands. The errors you see are coming from the OS and
the siis(4) controller, and both indicate the actual hard disk isn't
responding to the ATA command READ LOG EXT. error=6 means Device not
configured.
I can't see how/why running out of space would cause this. It looks
more like that you had a hardware issue of some sort happen during the
course of the operations you were running. It may not have happened
until now because you hadn't utilised writes to that area of the disk
(could have bad sectors there, or physical media/platter problems).
Please provide smartctl -a output for the drive that's gpt/disk06-live,
which I assume is /dev/ada6 (glabel sure makes correlation easy, doesn't
it? Sigh...). Please put the results up on the web somewhere, not
copy-pasted, otherwise I have to do a bunch of manual work with regarsd
to line wrapping/etc... I'll provide an analysis of SMART stats for
you, to see if anything crazy happened to the disk itself.
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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