Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Building a Continental Cluster
Maintaining a Continental Cluster
Chapter 5272
Node_Switching_Parameters:
NODE_TYPE STATUS SWITCHING NAME
Primary down nynode1
Alternate down nynode2
You can also use the ps command to check for the status of the
ContinentalClusters monitor daemons cmclrmond and cmclsentryd.
They should be running on the cluster node where the monitor package
is running.
Reviewing Messages and Log Files
The ContinentalClusters commands—cmquerycl, cmcheckconcl,
cmapplyconcl, and cmrecovercl—all display messages on the standard
output, which is the first place to look for error messages.
>------------ Event Monitoring Service Event Notification
------------<
Notification Time: Wed Nov 10 21:00:39 1999
system1 sent Event Monitor notification information:
/cluster/concl/ccluster1/clusters/LAclust/status/unreachable
is = 15.
User Comments:
Cluster "LAclust" has status "unreachable" for 15 sec
>---------- End Event Monitoring Service Event Notification
----------<
All notification messages associated with cluster events are reported in
/var/adm/cmconcl/eventlog on the cluster where monitoring is taking
place. An example of output from this file follows:
In addition, if you have defined a TEXTLOG destination, notification
messages are sent to the file you specified. (See “Editing Section
3—Monitoring Definitions” on page 226 for more information.)