[ClusterLabs] Help needed getting DRBD cluster working

[Gordon Ross]

I’m trying to setup a simple DRBD cluster using Ubuntu 14.04 LTS using Pacemaker & Corosync. My problem is getting the resource to startup.

I’ve setup the DRBD aspect fine. Checking /proc/drbd I can see that my test DRBD device is all synced and OK.

Following the examples from the “Clusters From Scratch” document, I built the following cluster configuration:

property \
	stonith-enabled="false" \
	no-quorum-policy="stop" \
	symmetric-cluster="false"
node ct1
node ct2
node ct3 attributes standby="on"
primitive drbd_disc0 ocf:linbit:drbd \
	params drbd_resource="disc0"
primitive drbd_disc0_fs ocf:heartbeat:Filesystem \
	params fstype="ext4" device="/dev/drbd0" directory="/replicated/disc0"
ms ms_drbd0 drbd_disc0 \
	meta master-max="1" master-node-max="1" clone-max="2" clone-node-max=“1” \
   notify="true" target-role="Master"
colocation filesystem_with_disc inf: drbd_disc0_fs ms_drbd0:Master

ct1 & ct2 are the main DRBD servers, with ct3 being a witness server to avoid split-brain problems.

When I look at the cluster status, I get:

crm(live)# status
Last updated: Mon Oct  5 14:04:12 2015
Last change: Thu Oct  1 17:31:35 2015 via cibadmin on ct2
Current DC: ct2 (739377523) - partition with quorum
3 Nodes configured
3 Resources configured


Node ct3 (739377524): standby
Online: [ ct1 ct2 ]


Failed actions:
    drbd_disc0_monitor_0 (node=ct1, call=5, rc=6, status=complete, last-rc-change=Thu Oct  1 16:42:11 2015
, queued=60ms, exec=0ms
): not configured
    drbd_disc0_monitor_0 (node=ct2, call=5, rc=6, status=complete, last-rc-change=Thu Oct  1 16:17:17 2015
, queued=67ms, exec=0ms
): not configured
    drbd_disc0_monitor_0 (node=ct3, call=5, rc=6, status=complete, last-rc-change=Thu Oct  1 16:42:10 2015
, queued=54ms, exec=0ms
): not configured

What have I done wrong?

Thanks,

GTG
-- 
Gordon Ross