[DRBD-user] Integrating DRBD with Redhat cluster

Jayanta Ghosh jayanta.ghosh at rp-sg.in
Mon Aug 19 06:53:26 CEST 2013

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Dear List,

 

We have deployed mailing solution over a two node cluster using Red  Hat
Cluster Suit. The OS is RHEL 6.1 (64 bit) at our data center. We  are having
an identical setup at our DR site. We need to replicate the 

 mail store and the mail queue to the DR site. For this we are planning  to
implement DRBD  8.4.3 (community version). We have created the DRBD related
RPMs using  the rpmbuild command and this has generated the following
packages:

 

drbd-heartbeat-8.4.3-2.el6.x86_64

 

drbd-xen-8.4.3-2.el6.x86_64

 

drbd-km-debuginfo-8.4.3-2.el6.x86_64

 

drbd-udev-8.4.3-2.el6.x86_64

 

drbd-8.4.3-2.el6.x86_64

 

drbd-pacemaker-8.4.3-2.el6.x86_64

 

drbd-debuginfo-8.4.3-2.el6.x86_64

 

drbd-utils-8.4.3-2.el6.x86_64

 

drbd-km-2.6.32_131.0.15.el6.x86_64-8.4.3-2.el6.x86_64

 

drbd-bash-completion-8.4.3-2.el6.x86_64

 

We have tested and found that the drbd replication is happening. Now we
would like to integrate the drbd with Redhat failover cluster. We have
incorporated the changes in the cluster.conf file and the same is attached
herein for your reference. In the cluster.conf we have called a script
"drbd_manage.sh" to manage the operations of drbd and it is also attached
herewith. 

 

But the issue is  the cluster service is not working  and the following
errors  are coming :-

 

Aug 17 12:39:59 drmail1 rgmanager[5899]: Initializing Services

Aug 17 12:39:59 drmail1 rgmanager[6709]: Executing /usr/etc/cron_manage.sh
stop

Aug 17 12:39:59 drmail1 rgmanager[6764]: Executing /usr/etc/cron_manage.sh
stop

Aug 17 12:39:59 drmail1 rgmanager[6763]: Executing /etc/init.d/httpd stop

Aug 17 12:39:59 drmail1 rgmanager[6829]: Executing /etc/init.d/saslauthd
stop

Aug 17 12:39:59 drmail1 rgmanager[6896]: Executing
/etc/init.d/courier-authlib stop

Aug 17 12:39:59 drmail1 rgmanager[7000]: Executing /etc/init.d/courier-imap
stop

Aug 17 12:39:59 drmail1 rgmanager[6979]: /dev/emcpowera1 is not mounted

Aug 17 12:40:00 drmail1 rgmanager[7062]: Executing /etc/init.d/postfix stop

Aug 17 12:40:00 drmail1 rgmanager[7097]: Executing /usr/etc/drbd_manage.sh
stop

Aug 17 12:40:00 drmail1 rgmanager[7176]: stop: Could not match /dev/drbd2
with a real device

Aug 17 12:40:00 drmail1 rgmanager[5899]: stop on fs "drbd-spool" returned 2
(invalid argument(s))

Aug 17 12:40:00 drmail1 rgmanager[7213]: stop: Could not match /dev/drbd1
with a real device

Aug 17 12:40:00 drmail1 rgmanager[5899]: stop on fs "drbd-mailstore"
returned 2 (invalid argument(s))

Aug 17 12:40:00 drmail1 rgmanager[5899]: Services Initialized

Aug 17 12:40:00 drmail1 rgmanager[5899]: State change: Local UP

 

Kindly help us.

 

Regards,

Jayanta ghosh

 

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