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(ZOS) Collecting job-related information with the System Management Facility (SMF)

SMF can be enabled to collect and record system and work-related information on the WebSphere for z/OS system. This information can be used to bill users, report system reliability, analyze the configuration, schedule work, identify system resource usage, and perform other performance-related tasks that our organization may require.

We can enable SMF recording for:


Tasks


Example

The SMF Browser available on the WebSphere for z/OS download site is able to display record type 120. To download the SMF Browser go to: https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=zosos390. For further information on the SMF Browser, download the browser package and read the associated documentation.

The following example shows sample output from the SMF Browser. The example features subtype 7 and subtype 8, in that order.

Record#: 14;
 Type: 120; Size: 820; Date: Fri Nov 23 04:54:17  EST 2001;
 SystemID: SY1; SubsystemID: WAS; Flag: 94;
 Subtype: 7 (WEB CONTAINER ACTIVITY);
# Triplets: 4;
Triplet #: 1; offset: 76; length: 32; count: 1;
Triplet #: 2; offset: 108; length: 140; count: 1;
Triplet #: 3; offset: 264; length: 556; count: 1;
Triplet #: 1; Type: ProductSection;
  Version: 1; Codeset: Unicode; Endian: 1; TimeStampFormat: 1 (S390STCK64);
  IndexOfThisRecord: 1; Total # records: 1; Total # triplets: 4;
Triplet #: 2; Type: WebContainerActivitySection;
  HostName : PLEX1;
  ServerName : BBOASR4;
  ServerInstanceName: BBOASR4A;
  WlmEnclaveToken * 00000020 00000242 -------- --------
                  * ^... * p1047
  ActivityID * b6c7a7b7 14e9bc85 000000b0 00000007
             * 0926306b -------- -------- --------
             *,............ *Cp1047
             ActivityStartTime * b6c7a7b7 14e9bc85 40404040 40404040 *
             ActivityStopTime * b6c7a7b7 53a8a645 40404040 40404040 *
Triplet #: 3; Type: HttpSessionManagerActivitySection;
  # http sessions created: 0; # http sessions invalidated: 0;
  # http sessions active: 0;
Average session life time: 0 [sec*10**-3];
 Triplet #: 4; Type: WebApplicationActivitySection;
  Name: PolicyIVP-localhost_1;
  # Servlets: 1;
  Triplet #: 4.1; offset: 272; length: 284; count: 1;
  Triplet #: 4.1; Type: ServletActivitySection;
   Name: SimpleFileServlet;
   ResponseTime: 48 [sec*10**-3];
   # errors: 0;
   Loaded by this request: 0;
   Loaded since (raw): ea54948e0d;
   Loaded since: Thu Nov 22 10:02:49 EST 2001;
Record#: 72;
  Type: 120; Size: 1744; Date: Fri Nov 23 05:01:02 EST 2001;
  SystemID: SY1; SubsystemID: WAS; Flag: 94;
  Subtype: 8 (WEB CONTAINER INTERVAL);
  # Triplets: 4;
  Triplet #: 1; offset: 76; length: 32; count: 1;
  Triplet #: 2; offset: 108; length: 112; count: 1;
  Triplet #: 3; offset: 264; length: 1480; count: 1;
  Triplet #: 1; Type: ProductSection;
    Version: 1; Codeset: Unicode; Endian: 1; TimeStampFormat: 1 (S390STCK64);
    IndexOfThisRecord: 1; Total # records: 1; Total # triplets: 4;
  Triplet #: 2; Type: WebContainerIntervalSection;
    HostName : PLEX1;
    ServerName : BBOASR4;
    ServerInstanceName: BBOASR4A;
    SampleStartTime * b6c7a6fd 655c0604 40404040 40404040 *
    SampleStopTime * b6c7a939 9a0e614c 40404040 40404040 *
Triplet #: 3; Type: HttpSessionManagerIntervalSection;
    http sessions #created: 1; #invalidated: 0;
    http sessions #active: 0; Min #active: 0; Max #active: 0;
    Average session life time: 0;
    Average session invalidate time: 0;
    http sessions #finalized: 0; #tracked: 0;
    http sessions #min live: 0; #max live: 0;
  Triplet #: 4; Type: WebApplicationIntervalSection;
    Name: PolicyIVP-localhost_1;
    # Servlets loaded: 0;
    # Servlets: 4;
    Triplet #: 4.1; offset: 312; length: 292; count: 1;
    Triplet #: 4.2; offset: 604; length: 292; count: 1;
    Triplet #: 4.3; offset: 896; length: 292; count: 1;
    Triplet #: 4.4; offset: 1188; length: 292; count: 1;
    Triplet #: 4.1; Type: ServletIntervalSection;
      Name: SimpleFileServlet;
      # requests: 6;
      AverageResponseTime: 764 [sec*10**-3];
      MinimumResponseTime: 18 [sec*10**-3];
      MaximumResponseTime: 4133 [sec*10**-3];
      # errors: 0;
      Loaded since (raw): ea54948e0d;
      Loaded since: Thu Nov 22 10:02:49 EST 2001;
    Triplet #: 4.2; Type: ServletIntervalSection;
      Name: Was40Ivp;
      # requests: 4;
      AverageResponseTime: 4664 [sec*10**-3];
      MinimumResponseTime: 1584 [sec*10**-3];
      MaximumResponseTime: 12572 [sec*10**-3];
      # errors: 0;
      Loaded since (raw): ea58a1509e;
      Loaded since: Fri Nov 23 04:55:14 EST 2001;
    Triplet #: 4.3; Type: ServletIntervalSection;
      Name: /cebit.jsp;
      # requests: 1;
      AverageResponseTime: 204 [sec*10**-3];
      MinimumResponseTime: 204 [sec*10**-3];
      MaximumResponseTime: 204 [sec*10**-3];
      # errors: 0;
      Loaded since (raw): ea58a24a69;
      Loaded since: Fri Nov 23 04:56:18 EST 2001;
    Triplet #: 4.4; Type: ServletIntervalSection;
      Name: JSP 1.1 Processor;
      # requests: 1;
      AverageResponseTime: 482 [sec*10**-3];
      MinimumResponseTime: 482 [sec*10**-3];
      MaximumResponseTime: 482 [sec*10**-3];
      # errors: 0;
      Loaded since (raw): ea54948b66;
      Loaded since: Thu Nov 22 10:02:48 EST 2001;


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