[DRBD-user] DRBD 0.7.23 and MD corruption

Dan Gahlinger dgahling at gmail.com
Fri May 18 18:53:55 CEST 2007

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Are you referring to the issues I had?
This is a common problem if you try to setup DRBD on an existing partition,
and don't take into consideration the meta-disk

When we ran this, it would "look" ok, but when trying to copy a file of a
certain size it would corrupt.
It turned out the magic number was around 183 megs for us.

The key to that was to build the partition on the DRBD device which is the
way it's supposed to be installed.

If you can let us know the exact steps you use to setup the drbd devce, the
partition, and our configuration file,
someone can probably help you.


On 5/18/07, Ryan Steele <steele at agora-net.com> wrote:
> I saw someone else post something similar to this a few weeks ago, but
> didn't see any response to it.  I've just set up DRBD 0.7.23 with
> Heartbeat2 on two future database server.  However, DRBD seems to have
> corrupted my multi-disk RAID1.  I booted a Knoppix CD on the affected
> machines, removed the DRBD rc.d scripts, and rebooted and things were
> fine.  To verify, I ran update-rc.d to recreate the symbolic links, and
> rebooted again to find that it again would not boot.  Moreover, even
> removing the rc.d links did not help - the array is, I fear, irreparably
> damaged.
> Is there any acknowledgement of this bug, or are there any suggestions
> as to how one might go about fixing it?  I can't even boot into the
> machine to run mdadm and repair the array, though maybe I can do that
> from the Knoppix CD...
> In any case, I just wanted to make people aware, and hopefully get a
> little feedback.  Thanks.
> --
> Ryan Steele
> Systems Administrator
> _______________________________________________
> drbd-user mailing list
> drbd-user at lists.linbit.com
> http://lists.linbit.com/mailman/listinfo/drbd-user
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20070518/c98093f6/attachment.htm>

More information about the drbd-user mailing list