This topic applies only on the z/OS operating system.

Enabling SMF recording

Use this page to enable SMF recording for WebSphere Application Server and select SMF type 120 records for output to the SMF data sets.

About this task

For an overview of SMF recording, see Chapter 1 of z/OS MVS System Management Facilities (SA22-7630)

To enable properties for specific record types, use the administrative console.

Procedure

  1. In the administrative console, click Servers > Application Servers > server_name.
  2. On the configuration panel, click Server Infrastructure > Java and Process Management > Process Definition > Control > Custom Properties.
  3. To enable SMF type 120 records, click New, and specify one or more of the following properties:
    • name = server_SMF_server_activity_enabled = 1 (or server_SMF_server_activity_enabled = true)
    • name = server_SMF_server_interval_enabled = 1 (or true)
    • name = server_SMF_container_activity_enabled = 1 (or true)
    • name = server_SMF_container_interval_enabled = 1 (or true)
    • name = server_SMF_interval_length, value=n, where n is the interval, in seconds, that the system will use to write records for a server instance. Set this value to 0 to use the default SMF recording interval.
  4. Click OK or Apply.
  5. Save the changes and make sure a file sync is performed before restarting the servers.
  6. For the changes to take effect, restart the application server.
  7. Edit the SMFPRMxx parmlib member and update the SYS or SUBSYS(STC,...) statement to include the type 120 record. SUBSYS(STC,EXITS(IEFU29,IEFACTRT),INTERVAL(SMF,SYNC), TYPE(0,30,70:79,88,89,120,245))
  8. Use the SET command to indicate which SMF parmlib member the system should use. You must issue the SET command before you start WebSphere Application Server. If you issue the command after the application server has started, SMF type 120 records will not be collected.
  9. Format the output data set.

Results

You have successfully enabled SMF recording when the SMF data is recorded in the data set which is specified in SMFPRMxx.



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Last updated: Aug 29, 2010 8:25:23 PM CDT
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