I tell you because the FAQ told me to. :-)
Nov 1 08:58:56 sdssdp9 kernel: I/O error in filesystem ("md(9,0)")
meta-data dev 0x900 block 0x4300b2e4
Nov 1 08:58:56 sdssdp9 kernel: ("<NULL>") error -1070889199 buf
Nov 1 08:58:56 sdssdp9 kernel: xfs_force_shutdown(md(9,0),0x2) called from
line 940 of file xfs_log.c. Return address = 0xc01b388e
Nov 1 08:58:56 sdssdp9 kernel: Log I/O Error Detected. Shutting down
Nov 1 08:58:56 sdssdp9 kernel: Please umount the filesystem, and rectify
Hopefully, you already know what the systems looks like, but I'll outline it
2, 8 disk IDE HW RAID5 arrays striped via software (aka RAID50), 1.12TB in
size. Various kernels, but currently 2.4.9 from CVS.
Generally, I can remount the FS and keep going along my merry way with no
corruption - it's just a pain when it goes down in the middle of the night
and then the farm batch jobs die 'cause they can't write their output to
Sloan Digital Sky Survey, Fermilab 630.840.6509
SDSS. Mapping the Universe.