On 2009-06-04T15:47:03, [email protected] wrote:
The C-LVM2, OCFS2 integration is much, much improved with
OpenAIS+Pacemaker. LVM2 in particular does not work at all on heartbeat
clusters.
> We use multipathd, LVM2 and ocfs2. This is the multipath.conf:
You shouldn't need an multipath.conf for an EMC array; it's supposed to
be zero-conf.
> And we changed the "filter" of lvm2 to not scan /dev/sd* devices. After
> booting up the system multipath -ll looks like this:
>
Correct.
> Jun 4 14:53:58 defr1elcbtd02 kernel: o2net: no longer connected to node
> defr1elcbtd01 (num 0) at 192.168.0.101:7777
> Jun 4 14:54:01 defr1elcbtd02 kernel: (4741,0):dlm_wait_for_node_death:374
> 5EE89BC01EFC405E9197C198DEEAE678: waiting 5000ms for notification of death of
> node 0
Right, the o2cb on-disk heartbeat interacts badly with multipath. Don't
use that. Use OpenAIS+OCFS2.
Regards,
Lars
--
SuSE Labs, OPS Engineering, Novell, Inc.
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde
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