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Re: [LUG] Problem with disk array.

 

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Robin Cornelius wrote:
> On Friday 03 June 2005 08:25, James Wonnacott wrote:
> 
>>May 31 14:43:52 remote fsck:     e2fsck -b 8193 <device>
>
> Are you / is your system trying to access the raid array *directly* as a ext3 
> file system over /dev/sda1 instead of as a RAID device over a /dev/md* 
> device? 
> 
> I don't think you can fsck /dev/sda1 for the same reason, you can 
> fsck /dev/md0 as that contains an ext3 file system but /dev/sda1 contains 
> RAID data.

The /dev/md* devices are for software RAID.

It is quite usual for hardware RAID devices, even SATA or IDE, to
present as SCSI devices /dev/sda, with partitions /dev/sda1 etc.

I'm not quite sure where to start with James problem.

First off can you mount the device after creating the ext3 file system
but before rebooting? ("mount /home")

If you can, can you unmount it and fsck the device before rebooting?
"umount /home ; e2fsck /dev/sda1"

I'd have thought if it presents and lets you newfs and fsck it
correctly, and mounts correctly, but fails after rebooting, it suggests
either hardware issues, or a driver problem. As such I'd be staring
closely at the "dmesg" (or boot messages) when it comes up, and checking
any documentation for the device. Also worth checking if the behaviour
is different with a cold reboot (Switch off for at least 5 seconds) and
a warm reboot.
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