[DRBD-user] [I've speak too quickly... ]OCFS 1.2.3 + DRBD 0.8pre6 + XEN 3.0.2 + DEBIAN sarge 3.1 works ...

Lars Ellenberg Lars.Ellenberg at linbit.com
Mon Nov 6 09:10:13 CET 2006

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

/ 2006-11-05 21:37:52 +0100
\ Sébastien CRAMATTE:
> I've speak too quickly ...
> 5 mn after ...
> I've copied  (using rsync)  my /home directory to  the mounted  ocfs2  
> folder ... works quite well
> But when I've tried to delete somes files inside the cluster  .... 
> Kernel Panic !!!

well, if it was ocfs2 self-fencing,
make sure that your timeout (ocfs heartbeat retry) settings
are suitable for your setup... the default ocfs2 self-fencing threshold
of 7 ocfs2 heartbeat retries (effective kernel panic after 12 seconds) 
is _way_ too short for a default drbd timeout of 10 seconds.

> drbd0: Split-Brain detected, dropping connection!

you have to decide which node has to be sync target,
make it secondary, and then tell it to connect
and "discard" its data:

# drbdadm -- --discard-my-data connect whatever

: Lars Ellenberg                                  Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH            Fax +43-1-8178292-82 :
: Schoenbrunner Str. 244, A-1120 Vienna/Europe   http://www.linbit.com :
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