>> I'm not sure if this list or the DRBD list is the right one to ask
this.
>>
>> Is it possible to deploy a 3-node CRM-based cluster where:
>>
>> -- nodes A and C share resource R1 on /dev/drbd0
>>
>> -- nodes B and C share resource R2 on /dev/drbd1
>>
>> -- resource constraints prevent R1 from running on node B and
prevent
>> resource R2 from running on node A?
> should work.
Good to hear. Do you think the following config would do the job?
-----
node $id="6080642c-bad3-4bb8-80ba-db6b1f7a0735" ha07b.mydomain.com \
attributes standby="off"
node $id="740538ba-ded5-43b1-95c0-ef898dc72581" ha07a.mydomain.com \
attributes standby="off"
node $id="b3b4bec2-19e2-4096-8914-febddc5ae42a" ha07c.mydomain.com \
attributes standby="off"
primitive p_clust04_ip ocf:heartbeat:IPaddr2 \
params ip="192.168.10.206" cidr_netmask="32" \
op monitor interval="15s"
primitive p_clust05_ip ocf:heartbeat:IPaddr2 \
params ip="192.168.10.207" cidr_netmask="32" \
op monitor interval="16s"
primitive p_drbd0 ocf:linbit:drbd \
params drbd_resource="ha01_mysql" \
op monitor interval="17s" \
op start interval="0" timeout="240" \
op stop interval="0" timeout="100"
primitive p_drbd1 ocf:linbit:drbd \
params drbd_resource="ha02_mysql" \
op monitor interval="18s" \
op start interval="0" timeout="240" \
op stop interval="0" timeout="100"
primitive p_fs_ha01 ocf:heartbeat:Filesystem \
params device="/dev/drbd0" directory="/ha01_mysql" fstype="ext3"
primitive p_fs_ha02 ocf:heartbeat:Filesystem \
params device="/dev/drbd1" directory="/ha02_mysql" fstype="ext3"
group g_clust04 p_fs_ha01 p_clust04_ip
group g_clust05 p_fs_ha02 p_clust05_ip
ms ms_drbd0 p_drbd0 \
meta master-max="1" master-node-max="1" clone-max="2"
clone-node-max="1" notify="true" target-role="Master"
ms ms_drbd1 p_drbd1 \
meta master-max="1" master-node-max="1" clone-max="2"
clone-node-max="1" notify="true" target-role="Started"
location l_prefer_1 g_clust04 50: ha07a.mydomain.com
location l_prefer_2 g_clust05 50: ha07b.mydomain.com
location l_prevent_1 g_clust05 -inf: ha07a.mydomain.com
location l_prevent_2 ms_drbd1 -inf: ha07a.mydomain.com
location l_prevent_3 g_clust04 -inf: ha07b.mydomain.com
location l_prevent_4 ms_drbd0 -inf: ha07a.mydomain.com
order o_drbd0_then_g_clust04 inf: ms_drbd0:promote g_clust04:start
order o_drbd1_then_g_clust05 inf: ms_drbd1:promote g_clust05:start
property $id="cib-bootstrap-options" \
dc-version="1.0.9-89bd754939df5150de7cd76835f98fe90851b677" \
cluster-infrastructure="Heartbeat" \
stonith-enabled="false" \
symmetric-cluster="true" \
last-lrm-refresh="1289916090" \
no-quorum-policy="ignore"
rsc_defaults $id="rsc-options" \
resource-stickiness="100"
--
Eric Robinson
Disclaimer - November 16, 2010
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