Date: Mon, 31 Aug 2009 08:52:14 +0200 From: Mark Stapper <stark@mapper.nl> To: freebsd-questions@freebsd.org Subject: ZFS and DMA read error Message-ID: <4A9B731E.9050400@mapper.nl>
next in thread | raw e-mail | index | archive | help
This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enig2AE2856AC251CC16793C2018
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Good day to you,
I'm having a bit of trouble with one of the disks in my zfs raidz1 pool.
It's giving me dma read error, and zpool is reporting READ failures.
However, data integrity is OK :-)
Unfortunately I was in the middle of rearranging my backup media, so I'm
backup up everything as we speak.
I will be testing the failing drive in another computer soon, however
before I return it i'd like to know if this could be caused my something
other than hardware failing.
Below the output of "zpool status" and a snippet of /var/log/messages
showing the DMA errors.
Thanks for the input.
Greetz,
Mark
pool: data
state: ONLINE
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are unaffect=
ed.
action: Determine if the device needs to be replaced, and clear the error=
s
using 'zpool clear' or replace the device with 'zpool replace'.
see: http://www.sun.com/msg/ZFS-8000-9P
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
data ONLINE 0 0 0
raidz1 ONLINE 0 0 0
ad4 ONLINE 0 0 0
ad6 ONLINE 21 0 0
ad8 ONLINE 0 0 0
ad10 ONLINE 0 0 0
errors: No known data errors
Aug 31 03:04:35 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 03:04:35 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 03:04:35 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204925440 size=3D2560 error=3D5
Aug 31 03:04:53 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 03:04:53 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 03:05:17 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 03:05:17 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 03:05:17 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5
Aug 31 06:12:01 yoshi login: ROOT LOGIN (root) ON ttyv2
Aug 31 06:35:34 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 06:35:34 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 06:35:34 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204925440 size=3D2560 error=3D5
Aug 31 06:36:33 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 06:36:34 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 06:36:34 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204923392 size=3D2048 error=3D5
Aug 31 06:36:38 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 06:36:38 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 06:36:38 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5
Aug 31 06:36:42 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 06:36:42 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 06:36:42 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5
Aug 31 06:37:52 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 06:37:52 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 06:37:52 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5
Aug 31 06:38:31 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 06:38:31 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 06:38:31 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5
Aug 31 06:38:45 yoshi kernel: ad6: FAILURE - READ_DMA48
status=3D51<READY,DSC,ERROR> error=3D40<UNCORRECTABLE> LBA=3D932040832
Aug 31 06:38:45 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5
Aug 31 06:38:45 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata
path=3D/dev/ad6 offset=3D477204947968 size=3D512 error=3D5
--------------enig2AE2856AC251CC16793C2018
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
iEYEARECAAYFAkqbcyIACgkQN9xNqOOVnWCLHwCcCR8WcP3iLCUmLSd7V17+pskB
e6IAnj5dkTp1Ao892q1pUVlLDPCkQNgK
=PXc7
-----END PGP SIGNATURE-----
--------------enig2AE2856AC251CC16793C2018--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4A9B731E.9050400>