CLUSTERS

Viewing Cluster Manager events and statistics
After distributing databases and mail servers to balance the workload, you should track the cluster events and statistics to be sure that the workload is acceptable and that failover occurs as expected. If the statistics show a problem, you may have to make some adjustments.

Viewing failover and workload balancing events

Whenever failover occurs, IBM® Lotus® Domino™ logs the event in the Domino server log file. A failover event may look like this:

08/23/2002 11:08:48 AM Failing over from Sales/Acme!!Customer.nsf for replica ID 852560C9:007232D, directing open to Sales2/Acme

When Domino fails over to balance the workload, the event may look like this in the Domino server log file:

08/23/2002 11:08:48 AM Load balancing off of Sales/Acme!!Customer.nsf for replica ID 852560C9:007232D, directing open to Sales2/Acme

You can view these events in the log file. Do one of the following.

From the Domino Administrator or the Web Administrator

1. In the Server pane, expand All Servers or expand Clusters.

2. Select the server that stores the log file you want to view.

3. Click the Server - Analysis tab.

4. In the Task pane, expand Notes Log or server name's Log.

5. Click Miscellaneous Events.

6. In the Results pane, open the document you want to view.

From the Domino server log file

1. Open the Domino server log file (LOG.NSF).

2. Open the Miscellaneous Events view.

3. Open the Notes Log document you want to view.

You can also run Log Analysis to gather all of the failover and workload balancing events into a database.

Viewing Cluster Manager statistics

You can view Cluster Manager statistic reports, or you can view a list of Cluster Manager statistics.

Viewing Cluster Manager statistic reports

Prior to using this procedure, you must enable statistic reporting in the Monitoring Results database.

1. In the Server pane of the IBM® Lotus® Domino™ Administrator or the Web Administrator, expand All Servers or expand Clusters.

2. Select the server you want.

3. Click the Server - Analysis tab.

4. In the Task pane, expand Monitoring Results, and then expand Statistics Reports.

5. Click Clusters.

6. In the Results pane, open the document you want, and look in the "Server cluster statistics" section of the document.

Note If you prefer, you can view these reports directly in the Monitoring Results database (STATREP.NSF). Open the database, expand Statistics Reports, and then click Clusters.

Viewing a list of Cluster Manager statistics

You can view a list of Cluster Manager statistics from the Domino Administrator, the Web Administrator, or the server console.

From the Domino Administrator or the Web Administrator
1. In the Server pane, expand All Servers or expand Clusters.

2. Select the server you want.

3. Click the Server - Statistics tab.

4. In the statistics list, expand Server, and then expand Cluster.


From the server console
Send the following Domino command from the server console:
The Cluster Manager statistics begin with "Server.Cluster." They give you information about failover, workload balancing, and the state of the servers in the cluster. Among other things, the statistics tell you how often the Cluster Manager attempted failover and workload balancing, and how many of these attempts were successful.

Note To see the availability index, the availability threshold, and the expansion factor of the current server, send the Domino command show stat server from the server console.

For an explanation of all the cluster statistics, see "Cluster Statistics."

See also