Creating a dump file

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You can create a dump file without stopping the dsmwatchd daemon process.

About this task

You can create a dump file at any time by sending the SIGCONT signal to the dsmwatchd daemon.

Restriction: The dsmwatchd daemon manages space only on GPFS™ file systems.

Procedure

  1. Query the dsmwatchd daemon process ID.
    Enter the following command: 
    ps –ef | grep dsmwatchd
    The system returns the process ID of the dsmwatchd process. 
    root@nodeA > ps –ef | grep dsmwatchd
root  2068     1 0 Feb08 ?     00:00:44 /opt/tivoli/tsm/client/hsm/bin/dsmwatchd nodetach
root 11766 32142 0 09:14 pts/0 00:00:00 grep --color=auto dsmwatchd
  2. Send the SIGCONT signal to the dsmwatchd process ID by using the kill command and the process ID.
    If the process ID is 2068, enter the following command:
    kill –SIGCONT 2068

Results

The dsmwatchd daemon creates two dump files in the /tmp/hsm/ directory.
  1. The dump.dmapi file contains current DMAPI session information.
  2. The dump.dsmwatchd file contains dsmwatchd internal counters and dsmrecalld daemon information.
IBM® Software Support can use the information in the dump files to troubleshoot HSM problems.