[Pacemaker] Question about Dual Primary DRBD + OCFS2

[rvm at free.fr]

Hi all,

Following this doc http://www.clusterlabs.org/wiki/Dual_Primary_DRBD_%2B_OCFS2, I've just installed 2 nodes (with some minors adjustements) and now I'm testing my setup.
If I set one node in standby and bring it online again, the other node sees this node "Inconsistent". The node just back from standby mode is UpToDate for him.
I've not this problem when I reboot a node (reboot).
I think that the problem is (from my log) :
ERROR: r0: Called drbdadm -c /etc/drbd.conf secondary r0
State change failed: (-12) Device is held open by someone

I've no STONITH system :-( Is it a problem for my tests ?

Thanks to all, sorry for my english.
Regards.