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Old 05-13-2008, 06:24 PM   #1
jpbland51
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Disk Error in Raid array file system inode tables.


I have a Red Hat Linux system that is getting scsi disk errors. This is a Version 3 of ES on an IBM x235 series system using the IBM raid card. This is a 3 drive raid with a hot swap drive on the scsi raid card channel.

The output of uname -a is:

Linux Linux 2.4.21-27.0.1.ELsmp #1 SMP Mon Dec 20 18:47:45 EST 2004 i686
i686 i386 GNU/Linux

Below is the messages log of the error when a try to create a directory under the /root account using mkdir test.

SCSI disk error : host 1 channel 0 id 0 lun 0 return code = 70000
I/O error: dev 08:02, sector 83886088
EXT3-fs error (device sd(8,2)): read_inode_bitmap: Cannot read inode bitmap - block_group = 320, inode_bitmap = 10485761
EXT3-fs error (device sd(8,2)) in ext3_new_inode: IO failure

The message from mkdir is
mkdir: cannot create directory `test': Input/output error

If I reboot the system and force a fsck of the disk, I get three sectors that show up bad. The raid had 1 drive fail. After replacing the drive and allowing a rebuild, all seemed good until the reboot forced a fsck. Now the disk check forces a drop into a maintenance shell during boot. After running fsck and telling it to fix the inode errors, the sectors don't seem to update. Run fsck again and you get the same errors again. Could I use badblocks to possible fix the error or would I have a major failure do to the bad blocks being in the inode table.

Thanks
jpbland51
 
Old 05-15-2008, 03:35 AM   #2
Agrouf
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Maybe you should give testdisk a try...
 
Old 05-19-2008, 12:36 PM   #3
archtoad6
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Agrouf,
What does testdisk
Quote:
TestDisk checks and recovers lost partitions
have to do w/ bad blocks??


jpbland51,
Can you under any circumstances read the array?
Can you back it up?
 
Old 05-20-2008, 01:34 AM   #4
Agrouf
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try badblocks
 
Old 05-20-2008, 09:30 AM   #5
archtoad6
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Thumbs up

Agrouf,
Much better suggestion.


jpbland51,
Again, what are your chances of backing it up?
If it is going bad rapidly at a physical level, your 1st priority should be saving your data.
 
Old 05-20-2008, 11:35 AM   #6
jpbland51
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More Understanding

This is a left over error after replacing a bad drive in an array. Sound like I will have to backup/destroy and rebuilding the array/re-install redhat and reload the data. Yes I can backup and run as long as I do not try to create a new directory.
 
Old 05-21-2008, 07:27 AM   #7
archtoad6
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For the moment, just back it up. -- I hope that it can be saved, but I fear accidents & mistakes.
 
  


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