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. > colocation colDLMDRBD inf: cloneDRBD msDRBD:Master "cloneDLM"? > # mkfs.ocfs2 -N 16 /dev/drbd0 16 node slots for a filesystem that can only ever run on 2 nodes? > 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. Cheers, Florian
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