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Pacemaker - Cluster Configuration for DRBD
2011/06/19 |
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Configure Clustering for DRBD.
This example shows to configure on the environment like follows.
(1) www01.srv.world ( eth0 [192.168.1.60], eth1 [10.0.0.60] ) (2) www02.srv.world ( eth0 [192.168.1.61], eth1 [10.0.0.61] )
This example uses eth0 for inter-connection and uses eth1 for service provider.
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| [1] | Configure Clustering. Set it on a Host. |
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[root@www01 ~]# crm configure crm(live)configure# primitive drbd0 ocf:linbit:drbd \ > params drbd_resource="r0" drbdconf="/etc/drbd.conf" \ > op start timeout="240s" \ > op monitor interval="20s" timeout="20s" \ > op stop timeout="100s" crm(live)configure# ms ms_drbd0 drbd0 \ > meta master-max="1" \ > master-node-max="1" \ > clone-max="2" \ > clone-node-max="1" \ > notify="true" crm(live)configure# primitive filesystem ocf:heartbeat:Filesystem \ > params device="/dev/drbd0" \ > fstype="ext4" \ > directory="/mnt/drbd0" \ > op start timeout="60s" \ > op monitor interval="20s" timeout="40s" \ > op stop timeout="60s" crm(live)configure# colocation fs_on_drbd inf: filesystem ms_drbd0:Master crm(live)configure# order fs_after_drbd inf: ms_drbd0:promote filesystem:start crm(live)configure# show # confirm settings
node www01.srv.world
node www02.srv.world
primitive drbd0 ocf:linbit:drbd \
params drbd_resource="r0" drbdconf="/etc/drbd.conf" \
op start interval="0" timeout="240s" \
op monitor interval="20s" timeout="20s" \
op stop interval="0" timeout="100s"
primitive filesystem ocf:heartbeat:Filesystem \
params device="/dev/drbd0" fstype="ext4" directory="/mnt/drbd0" \
op start interval="0" timeout="60s" \
op monitor interval="20s" timeout="40s" \
op stop interval="0" timeout="60s"
ms ms_drbd0 drbd0 \
meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1" notify="true"
colocation fs_on_drbd inf: filesystem ms_drbd0:Master
order fs_after_drbd inf: ms_drbd0:promote filesystem:start
property $id="cib-bootstrap-options" \
dc-version="1.1.2-f059ec7ced7a86f18e5490b67ebf4a0b963bccfe" \
cluster-infrastructure="openais" \
expected-quorum-votes="2" \
no-quorum-policy="ignore" \
stonith-enabled="false"
rsc_defaults $id="rsc-options" \
resource-stickiness="INFINITY" \
migration-threshold="1"
crm(live)configure# commit # enable settings crm(live)configure# exit bye |
| [2] | Make sure status with crm_mon. |
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[root@www01 ~]# crm_mon
============
Last updated: Sun Jun 19 21:03:25 2011
Stack: openais
Current DC: www01.srv.world - partition with quorum
Version: 1.1.2-f059ec7ced7a86f18e5490b67ebf4a0b963bccfe
2 Nodes configured, 2 expected votes
2 Resources configured.
============
Online: [ www01.srv.world www02.srv.world ]
Master/Slave Set: ms_drbd0
Masters: [ www01.srv.world ]
Slaves: [ www02.srv.world ]
filesystem (ocf::heartbeat:Filesystem): Started www01.srv.world
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| [3] | Reboot active server and Make sure active node switches normally. |
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[root@www02 ~]# crm_mon
============
Last updated: Sun Jun 19 21:04:53 2011
Stack: openais
Current DC: www02.srv.world - partition WITHOUT quorum
Version: 1.1.2-f059ec7ced7a86f18e5490b67ebf4a0b963bccfe
2 Nodes configured, 2 expected votes
2 Resources configured.
============
Online: [ www02.srv.world ]
OFFLINE: [ www01.srv.world ]
Master/Slave Set: ms_drbd0
Masters: [ www02.srv.world ]
Stopped: [ drbd0:0 ]
filesystem (ocf::heartbeat:Filesystem): Started www02.srv.world
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