topic Re: I/O read error in Operating System - HP-UX

I/O read error

Sergio Crespo — Wed, 29 Sep 2004 03:56:32 GMT

Hi all !!!!

I'm facing a problem with a disk, with a defective block. The issue is that it is a datafile and I can't copy it into another location due to I/O read errors .... Is there a way to force the copy? Will it be safe to do a fsck?

Thankx

Re: I/O read error

Robert-Jan Goossens — Wed, 29 Sep 2004 04:16:06 GMT

Hi Sergio,

Difficult question, If you have a good backup I would replace the drive and restore the data. You could try a fsck, but there are changes you will loose the diffective block.

Hope this helps,
Robert-Jan

Re: I/O read error

Henry Chua — Wed, 29 Sep 2004 04:20:17 GMT

Hi Sergie,

I am assuming that you were prompted the error in the transfer process. Sad to say if the data lies on a physically bad block, it will be quite impossible to recover it using fsck - FSCK cant fix physical faults.. I am not aware of any other methods that can do the trick either.

do a "dd if=/dev/rdsk/ of=/dev/null bs=1024k" if an I/O error is returned... u should change the disk before more damage is done.

This is all I know...

Re: I/O read error

Sunil Sharma_1 — Wed, 29 Sep 2004 05:22:51 GMT

Hi,

There is no option for force copy here. You have to change disk and restor data from latest good backup

Sunil

Re: I/O read error

Sergio Crespo — Wed, 29 Sep 2004 05:46:51 GMT

Thank you all...

I've been trying even with a full fsck and I could not workaround that I/O error.
I'll have to replace the disk...

Cya
SRC