6. DATA SOURCES › 6.2 Record Descriptions › 6.2.1 SMF Type Record › 6.2.1.2 SMF Type 120 Record

6.2.1.2 SMF Type 120 Record

 
 The record shown in Figure 6-2 is used by the CA MICS Web
 Analyzer to build the files in the Web Information Area.  The
 figure shows when each record is written and what each record
 contains.
 
 This type of record is generated by the WebSphere Application
 Server for z/OS. Below is a brief description of the SMF Type
 120 record contents.
 
 +-----------+----------+---------------------+--------------+
 |Record Type| Subtype  | Written             | Contents     |
 +===========+==========+=====================+==============+
 | SMF 120   |    1     | When an activity    | Server       |
 |           |          | within a server     | activity     |
 |           |          | completes.          |              |
 +-----------+----------+------------------------------------+
 | SMF 120   |    3     | For every           | Server       |
 |           |          | installation-defined| activity in  |
 |           |          | SMF interval.       | an interval  |
 +-----------+----------+------------------------------------+
 | SMF 120   |    6     | For every           | EJB Container|
 |           |          | installation-defined| activity in  |
 |           |          | SMF interval.       | an interval  |
 +-----------+----------+------------------------------------+
 | SMF 120   |    8     | For every           | Web Container|
 |           |          | installation-defined| activity in  |
 |           |          | SMF interval.       | an interval  |
 +-----------+----------+------------------------------------+
 | SMF 120   |    9*    | For every external  | Web Request  |
 |           |          | or internal request | activity     |
 |           |          | activity.           |              |
 +-----------+----------+------------------------------------+
 
 Figure 6-2.  SMF Type 120 Record Descriptions
 
 For information on how to enable IBM's WebSphere Application
 Server for z/OS to log SMF type 120 records, refer
 to the IBM documentation for WebSphere Application Server.
 
 IBM introduced the SMF type 120 subtype 9 Web Request
 Activity record with WAS v7. This record was designed to
 unify the performance metrics for each web request.
 Previously, users found it difficult to correlate and piece
 together request performance metrics using the other SMF type
 120 record subtypes.  The Subtype 9 record also contains
 additional performance metrics not found in the other
 subtypes.
 
 The Subtype 9 record contains many sections, some of which
 are user configurable.  User configuration was provided to
 allow users to strike a balance between the collection of
 detailed performance metrics, and the overhead required for
 collection.  Users may activate some sections for short
 periods of time to study performance or characteristics of
 web requests.
 
 The following chart list the sections, and identifies which
 sections are configurable, (meaning they may or may not be
 present in the raw data), and the target CA MICS file(s)
 where some or all of the metrics will be found.
 
 +-----------------------------------------------------------+
 | Subtype 9 section | Occurrences| Configurable | File(s)   |
 +-------------------|------------|--------------|-----------+
 | Platform neutral  |            |              | WEBWRA,   |
 | Server Information|     1      |      No      | WCB       |
 +-------------------|------------|--------------|-----------+
 | z/OS Server       |            |              | WEBWRA,   |
 | Information       |     1      |      No      | WCB       |
 +-------------------|------------|--------------|-----------+
 | Platform Neutral  |            |              | WEBWRA,   |
 | Request Info      |     1      |      No      | WCB       |
 +-------------------|------------|--------------|-----------+
 | z/OS Request      |            |              |           |
 | Information       |     1      |      No      | WEBWRA    |
 +-------------------|------------|--------------|-----------+
 | z/OS formatted    |            |              |           |
 | timestamps        |    0-1     |     Yes      | None      |
 +-------------------|------------|--------------|-----------+
 |                   |            |              |           |
 | Network Data      |    0-1     |      No      | WEBWRA    |
 +-------------------|------------|--------------|-----------+
 | Classification    |            |              |           |
 | data              |    0-5     |      No      | WEBWRA    |
 +-------------------|------------|--------------|-----------+
 | Security data     |            |              |           |
 |                   |    0-3     |     Yes      | WEBWRA    |
 +-------------------|------------|--------------|-----------+
 | CPU Usage         |            |              |           |
 | Breakdown         |    0-30    |     Yes      | WEBWCB    |
 +-------------------|------------|--------------|-----------+
 |                   |            |              |           |
 | User Data         |    0-5     |     Yes      | WEBWUD    |
 +-------------------|------------|--------------|-----------+
 | Asynchronous      |            |              | Not       |
 | Activity          |      1     |     No       | Supported |
 +-------------------|------------|--------------|-----------+
 
 Note: Request identification data elements are found in
 multiple files.  For merging files together at the detail
 level,  use the Enclave Token (WEBCY) value to match
 observations for a particular request.