How to Verify the Operation of the Fault Monitor for the SAP Replica Server

Perform this procedure on each set of two nodes where the SAP replica server and the SAP enqueue server can run.

Steps

1. Log in to a node as superuser.

2. Bring online the resource group to which the SAP enqueue server belongs.

   The SAP replica server resource is configured to be dependent on the SAP enqueue server resource.

   # scswitch -z -g central-rg -h node

   -z

   Specifies that a resource group is to be brought online.

   -g central-rg

   Specifies the name of the resource group to be brought online. This group is the resource group to which the SAP enqueue server belongs.

   -h node

   Specifies the name of the node on which the resource group is to be brought online. This node is the node that you have just logged in to.

3. Log in to a different node as superuser.

4. Bring online the resource group to which the SAP replica server belongs.

   # scswitch -z -g repl-rg -h node

   -z

   Specifies that a resource group is to be brought online.

   -g repl-rg

   Specifies the name of the resource group to be brought online. This group is the resource group to which the SAP replica server belongs.

   -h node

   Specifies the name of the node on which the resource group is to be brought online. This node is the node that you have just logged in to.

5. Abnormally terminate the SAP replica server.

   1. Determine the process ID of the SAP replica server, where the name of the SAP replica server executable file is enrepserver.

      # ps -ef | grep enrepserver

   2. Kill the process for the SAP replica server.

      # kill -9 pid

      pid

      Specifies the process ID of the SAP replica server. This ID is the process ID that you determined with the ps and grep commands.

6. Confirm that the SAP replica server either restarts or fails over.

   If the abnormal termination action in Step 5 is repeated a specified number of times within a specified time interval, the SAP replica server fails over to an available node that is not running the SAP enqueue server. If no node is available, the SAP replica server is offline.

   If the abnormal termination action is not repeated a specified number of times within a specified time interval, the SAP replica server restarts on the same node.

   Run the scstat command to determine the status of the SAP replica server.

   The maximum number of times that the application can be abnormally terminated before failing over is specified with the standard property Retry_count. The time interval is specified with the standard property Retry_interval. These properties are described in Resource Properties in Sun Cluster Data Services Planning and Administration Guide for Solaris OS.