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Old 11-25-2007, 12:13 AM   #1
madunix
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Registered: Oct 2003
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Unable to read /dev/sdc


[root@linux1 ~]# fdisk -l

Disk /dev/sda: 72.7 GB, 72746008576 bytes
255 heads, 63 sectors/track, 8844 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 8844 70935007+ 8e Linux LVM

Disk /dev/sdb: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

Device Boot Start End Blocks Id System
/dev/sdb1 1 51200 52428784 83 Linux

Unable to read /dev/sdc
[root@linux1 ~]#


end_request: I/O error, dev sdc, sector 104857592
Buffer I/O error on device sdc, logical block 13107199
end_request: I/O error, dev sdc, sector 104857592
Buffer I/O error on device sdc, logical block 13107199
end_request: I/O error, dev sdc, sector 104857592
end_request: I/O error, dev sdc, sector 104857336
end_request: I/O error, dev sdc, sector 104857336
end_request: I/O error, dev sdc, sector 8
end_request: I/O error, dev sdc, sector 8
end_request: I/O error, dev sdc, sector 104857584
end_request: I/O error, dev sdc, sector 104857584
end_request: I/O error, dev sdc, sector 104857592
end_request: I/O error, dev sdc, sector 104857592
end_request: I/O error, dev sdc, sector 104857592
end_request: I/O error, dev sdc, sector 104857592
end_request: I/O error, dev sdc, sector 104857536
end_request: I/O error, dev sdc, sector 104857536
end_request: I/O error, dev sdc, sector 104857344
end_request: I/O error, dev sdc, sector 104857344
end_request: I/O error, dev sdc, sector 104857344
end_request: I/O error, dev sdc, sector 104857584
end_request: I/O error, dev sdc, sector 104857200
end_request: I/O error, dev sdc, sector 104857200
end_request: I/O error, dev sdc, sector 104856864
end_request: I/O error, dev sdc, sector 104856864
end_request: I/O error, dev sdc, sector 104857592
end_request: I/O error, dev sdc, sector 104857592
end_request: I/O error, dev sdc, sector 0



[root@linux1 ~]# powermt display dev=all
Pseudo name=emcpowera
CLARiiON ID=CK200073300475 [SG_Linux1]
Logical device ID=60060160DDD01D00806B76E56A8CDC11 [LUN 4]
state=alive; policy=CLAROpt; priority=0; queued-IOs=0
Owner: default=SP A, current=SP A
==============================================================================
---------------- Host --------------- - Stor - -- I/O Path - -- Stats ---
### HW Path I/O Paths Interf. Mode State Q-IOs Errors
==============================================================================
1 qla2xxx sdb SP A2 active alive 0 0
1 qla2xxx sdc SP B2 active alive 0 0
2 qla2xxx sdd SP A3 active alive 0 0
2 qla2xxx sde SP B3 active alive 0 0
 
Old 11-25-2007, 03:19 AM   #2
jschiwal
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Location: Fargo, ND
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Could you give the kernel options used when you boot up? Do you know that the drive isn't bad?

You might want to indicate your disto and kernel version. If the other drives are the same, or use the same controller, then since they are OK, you aren't using a kernel boot option that might cause problems, such as with interupt sharing, and the kernel driver doesn't have a problem as the other ones are OK.

You might consider purchasing SpinRite from www.grc.com. It may be able to recover the disk if it's bad.

Last edited by jschiwal; 11-25-2007 at 03:30 AM.
 
Old 11-25-2007, 08:06 AM   #3
pixellany
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Registered: Nov 2005
Location: Annapolis, MD
Distribution: Arch/XFCE
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Do you know that sdc is supposed to have something on it?

What piques the curiosity is that it seems to be looking for--e.g.--sector 104857584. I don't know why it would do that unless it found something in the primary partition table that pointed there.

If this drive has data that you need to recover, then be careful not to do anything that would write to the drive.

If there's no concern about what's on the drive, then just re-partition it.
 
  


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