Am Montag, 14. September 2009 09:15:36 schrieb Florian Haas: > On 2009-09-12 21:10, Michael Schwartzkopff wrote: > > Hi, > > > > I tried to write a new HOWTO about a setup of a dual primary DRBD and the > > Cluster filesystem OCFS2 on top. You find it at: > > http://www.clusterlabs.org/wiki/Dual_Primary_DRBD_%2B_OCFS2 > > > > Please note that it is only a first try. So I would be glad about any > > improvements. Please mail me your suggenstions. Thanks! > > Here we go: > > Please note that the monitor-Operation of the primitive resource is not > > only nice to have but essential to make the setup work. Otherwise the > > second secondary resource will not get promoted after a failure. > > That is not true, monitor is not essential (although highly > recommended). Enabling notify however *is* essential, and the RA will > bail out with $OCF_ERR_CONFIGURED if notifications are not enabled.
See my thread: "Strange behaviour of dual master DRBD" for the behaviour of a dual master DRBD resouce WITHOUT monitoring. I still do not have a satifying answer, why pacmeaker does not promote the resource on a node after it got online after a standy. With monitoring it works. > > colocation colDLMDRBD inf: cloneDRBD msDRBD:Master > > "cloneDLM"? Oops, yes. Thanks. > > # mkfs.ocfs2 -N 16 /dev/drbd0 > > 16 node slots for a filesystem that can only ever run on 2 nodes? Copy and paste form the Novell Doc. Of course thes do not use DRBD. So I will change. > > primitive resFS ocf:heartbeat:Filesystem \ > > > > params device="/dev/drbd0" directory="/mnt" fstype="ocfs2" \ > > > > op monitor interval="120s" > > Use device="/dev/drbd/by-res/<resourcename>" please, makes the config > much more transparent and easier to follow. Ok Thanks for all your comments! -- Dr. Michael Schwartzkopff MultiNET Services GmbH Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany Tel: +49 - 89 - 45 69 11 0 Fax: +49 - 89 - 45 69 11 21 mob: +49 - 174 - 343 28 75 mail: mi...@multinet.de web: www.multinet.de Sitz der Gesellschaft: 85630 Grasbrunn Registergericht: Amtsgericht München HRB 114375 Geschäftsführer: Günter Jurgeneit, Hubert Martens --- PGP Fingerprint: F919 3919 FF12 ED5A 2801 DEA6 AA77 57A4 EDD8 979B Skype: misch42 _______________________________________________ Pacemaker mailing list Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker
