Gerhard Mack wrote:
Hello,
I had one of 5 drives fail in my raid 5 setup and now many files are
unreadable.. Isn't raid 5 supposed to compensate for exactly this
happening?
It looks like you have multiple drives with problems here:
Here's sde unhappy:
Dec 25 18:36:27 localhost kernel: sde: Current: sense key: Recovered Error
Dec 25 18:36:27 localhost kernel: Additional sense: Recovered data - recommend reassignment
sdb seems to be overheating:
Dec 26 11:25:56 localhost kernel: sdb: Current: sense key: Recovered Error
Dec 26 11:25:56 localhost kernel: Additional sense: Warning - specified temperature exceeded
Now sdf is unhappy..
Dec 29 06:26:07 localhost kernel: sdf: Current: sense key: Hardware Error
Dec 29 06:26:07 localhost kernel: Additional sense: Mechanical positioning error
Dec 29 06:26:07 localhost kernel: end_request: I/O error, dev sdf, sector 9664
Dec 29 06:26:07 localhost kernel: raid5: Disk failure on sdf, disabling device. Operation continuing on 4 devices
Dec 29 06:26:07 localhost kernel: RAID5 conf printout:
Dec 29 06:26:07 localhost kernel: --- rd:6 wd:4 fd:2
Dec 29 06:26:07 localhost kernel: disk 0, o:1, dev:sdc
Dec 29 06:26:07 localhost kernel: disk 1, o:1, dev:sdd
Dec 29 06:26:07 localhost kernel: disk 2, o:1, dev:sde
Dec 29 06:26:07 localhost kernel: disk 3, o:0, dev:sdf
Dec 29 06:26:07 localhost kernel: disk 4, o:1, dev:sdg
Dec 29 06:26:07 localhost kernel: RAID5 conf printout:
Dec 29 06:26:07 localhost kernel: --- rd:6 wd:4 fd:2
Dec 29 06:26:07 localhost kernel: disk 0, o:1, dev:sdc
Dec 29 06:26:07 localhost kernel: disk 1, o:1, dev:sdd
Dec 29 06:26:07 localhost kernel: disk 2, o:1, dev:sde
Dec 29 06:26:07 localhost kernel: disk 4, o:1, dev:sdg
Dec 29 06:26:07 localhost kernel: Buffer I/O error on device md0, logical block 6040
Dec 29 06:26:07 localhost kernel: lost page write due to I/O error on md0
Dec 29 06:26:07 localhost kernel: REISERFS: abort (device md0): Journal write error in flush_commit_list
Dec 29 06:26:07 localhost kernel: REISERFS: Aborting journal for filesystem on md0
Dec 29 07:16:56 localhost kernel: ReiserFS: md0: warning: clm-6006: writing inode 2996 on readonly FS
Dec 29 07:16:56 localhost kernel: ReiserFS: md0: warning: clm-6006: writing inode 2996 on readonly FS
Dec 29 07:17:28 localhost kernel: Buffer I/O error on device md0, logical block 5052984
Dec 29 07:17:28 localhost kernel: lost page write due to I/O error on md0
I don't know if this completely explains the failure, but it seems you
have bigger problems than one bad drive, and RAID5 cannot handle
multiple drive failures.
--
Robert Hancock Saskatoon, SK, Canada
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Home Page: http://www.roberthancock.com/
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