Re: RAID1 Corruption

[Sven Anders <anders@anduras.de>]

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Markus Gehring wrote:
| Hi Folks!
|
| I have a reproducable problem with corrupted data read from a RAID1-array.
|
| Everything works fine with only one drive in the array. If the second is
| synced up read accesses return corrupted data.
|
| Interesting: If you remove again the second disk. The same files will be
|  read correctly again (no matter if written while only one disk is in
| the array or two are synced!)!
|
| Tests with differend disks (2x80GB Seagate and 2x160GB Samsung),
| different partition sizes (20, 40, 80, 160GB), different filesytems
| (ext3, ext2, reiser) showed the same results.
|
| If i use the drive without raid everything works fine.

It's seems to be the same problem I have (see my posting from 5.1.2005
on this mailing-list).

The problem was reproducable. I changed to ext2, but problem persists.
I tried several kernel configurations (with a special extra-small
configuration, which had only the absolute necessary turned on), but
it had no effect (It only took longer to reproduce the problem).
I tried the kernels 2.6.9 with and without the -ac patches, wth no
success at all.

Because I'm not at home till 29.01., I could not run any tests at the
moment, but the problem seem to be the same. The seems to be no problem
with the 2.4 kernel series.

Any ideas?

Regards
~ Sven

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