How do you monitor multiple HACMP/PowerHA clusters? You're probably familiar with the clstat or the xclstat commands. These are nice, but not sufficient when you have more than 8 HACMP/PowerHA clusters to monitor, as it can't be configured to monitor more than 8 clusters. It's also difficult to get an overview of ALL clusters in a SINGLE look with clstat. IBM included a clstat.cgi in HACMP 5 to show the cluster status on a webpage. This still doesn't provide an overview in a single look, as the clstat.cgi shows a long listing of all clusters, and it is just like clstat limited to monitoring only 8 clusters.
The HACMP/PowerHA cluster status can be retrieved via SNMP (this is actually what clstat does too). Using the IP addresses of a cluster and the snmpinfo command, you can remotely retrieve cluster status information, and use that information to build a webpage. We've written a script for this purpose. By using colors for the status of the clusters and the nodes (green = ok, yellow = something is happening, red = error), you can get a quick overview of the status of all the HACMP/PowerHA clusters.
Per cluster you can see: the cluster name, the cluster ID, HACMP version and the status of the cluster and all its nodes. It will also show you where any resource groups are active.
You can download the script here. This is version 1.6. Untar the file that you download. There is a README in the package, that will tell you how you can configure the script. This script has been tested with HACMP version 4, 5, 6, and up to PowerHA version 7.1.3.4.
If you found this useful, here's more on the same topic(s) in our blog:
- HACMP Event generation
- Tweaking the deadman switch
- HACMP auto-verification
- PowerHA HTML report
- Oracle RAC introduction
Interested in learning more?
