Rogier Wolff wrote:
>
> Hi,
>
> I have a machine with 4 160G disks in a raid-0 configuration. Now
> after upgrading the hardware, all of a sudden raidstart can't find the
> raid-superblocks anymore. Invalid magic.
>
> I'm suspecting that it might be that the superblock was overwritten
> with data or something like that. Does anybody know of a bug like
> this?
>
> We're running kernel-2.4.16 with andre's IDE patches for the large
> disks.
>
> I'll see if I can find the "magic" anywhere on the disk....
Couldn't find them .
Moved the disks to the old machine, got my RAID back. But I still
can't find the magic numbers for the rais-sb anywhere.
Could it be that 48bit addressing doesn't work for PIO mode?
Either KERNEL bug, drive bug or by spec?
I found that the drives were horribly slow when I tried searching
them. So I turned DMA on only after having failed to mount the raid,
and started to "search" through the whole disk.
Can someone seek to the 8k before end of a raid-partition, and dump
the remaining part of the disk, so that I can be sure to know what it
looks like? That should include the raid-sb, right?
Roger.
-- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 ** *-- BitWizard writes Linux device drivers for any device you may have! --* * There are old pilots, and there are bold pilots. * There are also old, bald pilots. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Mar 15 2002 - 22:00:13 EST