Re: Serviceguard behavior

[kurt0414]

Hi all,

I have some very basic mcsg concept and hope you can help.

System: Two nodes cluster. Both HW identical. (rx6600)
SG version:Version 11.18 with latest patch
OS: HPUX11iv2 with QPK Dec-2007
AUTOSTART_CMCLD is set to 1
AUTOSTART_TIMEOUT is set to 60000000

Question: When two nodes reboot. The cluster will automatically re-form. What if when the secondary node keeps halt and primary node reboots. My concept is that it will wait until 60 seconds and form a single node cluster.

But the fact is that the cluster will not reform. Cluster will only run after manually type "#cmruncl -n node_name" to form a signle node cluster.

Is that expected behaviour?

Thanks

[melvyn burnard · Accepted solution]

If, at the time of booting one of the two nodes, the 2nd node is not booted/running etc, the 1st server will wait for a timeout value that is set for 10 minutes (600 seconds) and if 100% (i.e. ALL of the cluster nodes) of the servers defined in the cluster are NOT available to start forming the cluster, then a cluster will NOT be formed, and you will have to manually start the cluster using the cmruncl -n

So this is normal behaviour

[Steven E. Protter]

Shalom,

You probably have not set your cluster to autostart.

See /etc/rc.config.d/cmcluster

SEP

[kurt0414]

The AUTOSTART_CMCLD is set to 1 at /etc/rc.config.d/cmcluster

By the way, I think melvyn burnard had already answered my question. Thanks by the way

[Emil Velez]

You must have configured the cluster to autostart otherwise the node will not wait 10 minutes before continuing.

The cluster will not start unless all nodes are available. The 10 minute period is meant to synchronize the boot of multiple nodes and allow them to form a cluster together.

You can only start a cluster with a subset of the nodes with the

cmruncl -n

command.