Messages in this thread | | | Subject | Re: RAID magics gone... | Date | Sun, 10 Mar 2002 17:19:49 +0100 (MET) | From | (Rogier Wolff) |
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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/
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