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Re: bad primary superblock - bad magic number !!!

To: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Subject: Re: bad primary superblock - bad magic number !!!
From: Leo Davis <leo1783@xxxxxxxxx>
Date: Wed, 12 May 2010 05:45:03 -0700 (PDT)
Cc: xfs@xxxxxxxxxxx
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> So is I do a - dd if=/dev/random of=dev/cciss/c0d2 , that should fail
> and therby confirm that the drive or array has issues...do i make any
> sense here?

>Uh, you should try the other way around to avoid breaking the
>filesystem :

>dd if=/dev/cciss/c0d2 of=/dev/null bs=131072

>If no error occurs it should be OK.

# dd if=/dev/cciss/c0d2 of=/dev/null bs=131072
796+1 records in
796+1 records out
#

doesn't show any errors here ......

> havent had much success with testing the hard drives, tried mhdd &
> seatools with no luck yet.

>What do you mean? Does the tools report any problem with the drives?

mhdd doesnt detect the drives, probably an issue with chipset...still looking for tools

thanks




From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
To: Leo Davis <leo1783@xxxxxxxxx>
Cc: xfs@xxxxxxxxxxx
Sent: Wed, May 12, 2010 1:29:02 PM
Subject: Re: bad primary superblock - bad magic number !!!

Le Wed, 12 May 2010 02:19:16 -0700 (PDT)
Leo Davis <leo1783@xxxxxxxxx> écrivait:

> havent had much success with testing the hard drives, tried mhdd &
> seatools with no luck yet.

What do you mean? Does the tools report any problem with the drives?

> So is I do a - dd if=/dev/random of=dev/cciss/c0d2 , that should fail
> and therby confirm that the drive or array has issues...do i make any
> sense here?

Uh, you should try the other way around to avoid breaking the
filesystem :

dd if=/dev/cciss/c0d2 of=/dev/null bs=131072

If no error occurs it should be OK.

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