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recover data from failed hard drives on Fedora Core 1



Hi,

 

 I got a problem to recover data from Fedora core 1 hosts when hard drives fail. I know that the disks fail because there are error messages like the following logged in /var/log/messages.

 

…..

arc144: Apr 24 12:52:53 arc144 kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }

arc144: Apr 24 12:52:53 arc144 kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=90186647, sector=52432952

arc144: Apr 24 12:52:53 arc144 kernel: end_request: I/O error, dev 03:0b (hda), sector 52432952

…..

 

My question is: How to figure out the file|directory occupying the failed sector|LBAsect?  If I can figure it out then I can skipped the files|directories since the failed files will sometimes bring the failed drive to completely inaccessible status on Fedora Core 1 hosts, which is quite different from my former Redhat 8.0.

 

 Another questions is, what is the exact difference between LABsect and sector in the above message? Can I find any helpful&complete info on ext2|ext3 internals? At least related to disk space allocation.

 

Any suggestions are greatly appreciated. Thanks.

 

 

--Guolin Cheng

 

 


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