WebSphere Application Server Version 6.1 Feature Pack for Web Services
             Operating Systems: z/OS

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

SMF settings

Configure SMF records to collect job information to tune application server performance.

Here is a sample SMFPRMxx member that will create interval records every 2 minutes, and record the following SMF record types:
  • 30 - Address space
  • 70-79 - RMF
  • 82 - Crypto
  • 88-90 - System Logger, Usage & System Data
  • 101 - DB2
  • 110 - CICS
  • 120 - WebSphere


ACTIVE                      /*ACTIVE SMF RECORDING*/
    DSNAME(&SYSNAME..MAN1, &SYSNAME..MAN2)       /*TWO MAN DATASETS */
    LISTDSN                     /* LIST DATA SET STATUS AT IPL*/
    NOPROMPT                    /* DON'T PROMPT THE OPERATOR  */
    INTVAL(02)                  /* SMF GLOBAL RECORDING INTERVAL */
    SYNCVAL(00)                 /* GLOBAL SYNC VALUE             */
    MAXDORM(3000)               /* WRITE AN IDLE BUFFER AFTER 30 MIN*/
    STATUS(010000)              /* WRITE SMF STATS AFTER 1 HOUR*/
    SID(&SYSNAME(1:4))          /* USE SYSNAME AS SID     */
    SUBSYS(STC,INTERVAL(SMF,SYNC),
                          TYPE(0,30,70:79,88:90,101,110,120))   

Set the SMF recording interval to 2 minutes by using the 'SET SMF=xx' command to activate the SMFPRMxx member from SYSx.PARMLIB. Use the 'D SMF,O' command to display the parameters in effect.

Use a tool like WSWS to simulate an application stress load.

While the transactions are running, switch to SDSF and RMF to observe the transactions.




Related tasks
Collecting job-related information with the System Management Facility (SMF)
Choosing diagnosis tools and controls
Diagnosing problems (using diagnosis tools)
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Last updated: Nov 25, 2008 2:35:59 AM CST
http://publib.boulder.ibm.com/infocenter/wasinfo/v6r1/index.jsp?topic=/com.ibm.websphere.wsfep.multiplatform.doc/info/ae/ae/rtrb_setupSMF.html