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Re: XFS - hard drive dying

To: Adam Marx <A.Marx@xxxxxxxxxx>
Subject: Re: XFS - hard drive dying
From: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
Date: Wed, 10 Aug 2005 13:17:59 -0400 (EDT)
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <000601c59dce$44c08a60$9601a8c0@xxxxxxxxxxxx>
References: <000601c59dce$44c08a60$9601a8c0@xxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
You can try putting it in the freezer for an hour or so, then hooking it up immediately and attempting to either dd the drive or mount/repair it and copy the data off immediately.

Justin.

On Wed, 10 Aug 2005, Adam Marx wrote:


I'm experiencing some problems with my XFS filesystem mainly due to a drive 
that is crashing. The system had been very stable and nothing has been changed. 
This is some of the information from dmsg:

XFS mounting filesystem dm-0
Starting XFS recovery on filesystem: dm-0 (dev: dm-0)
hdd: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hdd: dma_intr: error=0x40 { UncorrectableError }, LBAsect=371098048, high=22, 
low=1999296, sector=371098047
ide: failed opcode was: unknown
end_request: I/O error, dev hdd, sector 371098047
I/O error in filesystem ("dm-0") meta-data dev dm-0 block 0x27d08001       
("xfs_trans_read_buf") error 5 buf count 512
xfs_force_shutdown(dm-0,0x1) called from line 422 of file 
fs/xfs/xfs_trans_buf.c.  Return address = 0xe2e521b4
Filesystem "dm-0": I/O Error Detected.  Shutting down filesystem: dm-0
Please umount the filesystem, and rectify the problem(s)
hdd: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hdd: dma_intr: error=0x40 { UncorrectableError }, LBAsect=371098048, high=22, 
low=1999296, sector=371098047
ide: failed opcode was: unknown
end_request: I/O error, dev hdd, sector 371098047
I/O error in filesystem ("dm-0") meta-data dev dm-0 block 0x27d08002       
("xlog_recover_process_iunlinks(#1)") error 5 buf count 512
hdd: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hdd: dma_intr: error=0x40 { UncorrectableError }, LBAsect=371098048, high=22, 
low=1999296, sector=371098047
ide: failed opcode was: unknown
.....

I tried to do a repair on the XFS system for information first and it generated 
the following:

[root@myth ~]# xfs_repair -n /dev/VGforMyth/video
Phase 1 - find and verify superblock...
superblock read failed, offset 342003548160, size 2048, ag 4294967295, rval 36

fatal error -- Input/output error


This drive is still under warranty and I want to recover any information from 
the drive that is possible before sending off for replacement. Any help or 
suggestions would be greatly appreciated.

Thanks.

Adam,




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