About the VCS Enterprise Agent for Sybase

The Sybase agent brings the configured Sybase servers online, monitors them, and takes them offline.

The package contains two agents:

• SQL Server Agent: Sybase
• Backup Server Agent: SybaseBk

The agents include type declarations and agent executables, and are represented with Sybase and SybaseBk resource types, respectively. Both agents work together to make Sybase highly available in a VCS cluster.

SQL Server Agent: Sybase

The Sybase agent starts a Sybase SQL Server, monitors the server processes, and shuts down the server. Specific agent operations include:

• Online--- Starts the Sybase SQL Server by using the following sql command:

startserver -f $SYBASE/$SYBASE_ASE/install/RUN_$Server

• Monitor--- In basic monitoring mode, the agent scans process table for the dataserver process. In detail monitoring mode, the agent runs the script specified in MonScript as an option. For more information on the monitoring options, see Monitoring Options.
• Offline--- Stops the Sybase SQL Server by using the isql command in the following manner:

The agent first executes the command shutdown with wait. If this fails, the offline script executes shutdown with nowait.

• Clean--- Forcefully stops the Sybase SQL Server by using the isql command in the following manner:

The agent first executes the command shutdown with wait. If this fails, the clean script executes shutdown with nowait.

If the process does not respond to the shutdown command, the agent scans the process table for processes associated with the configured database and kills them.