Log Stream Section

This section identifies the log stream that generated the record and provides general log stream usage statistics.

Also refer to the SMF88LSD DSECT Section in macro IXGSMF88 in SYS1.MACLIB.

Parent topic: Subtype 1

Triplet Information

This section is located on the record using the following triplet fields, which are located in the ‘Header/self-defining’ section:
Offset
SMF88LOF
Length
SMF88LLN
Number
SMF88LON
Offsets Name Length Format Description
0 0 SMF88LIT 8 EBCDIC SMF-counter instance token identifies a connection to a log stream. It ties together SMF records for a given instance of a connection to a log stream.
8 8 SMF88LSN 26 EBCDIC Log stream name.
34 22 SMF88LFL 2 EBCDIC Log stream flags:
Bit
Meaning when set
0
Reserved
1
This log stream used staging data sets during the expiring SMF interval.
2
When ON, the SMF record has been generated when the log stream disconnected from the system.
3
When ON, the log stream has ZAI (YES) specified and log data has been sent to the IBM zAware server.
4-15
Reserved.
36 24 SMF88LTD 8 EBCDIC TOD-time when SMF global interval expired (from parameter list of ENF event 37, which requested this SMF record from logger). Time is reported in GMT.
44 2C SMF88LWI 4 binary IXGWRITE macro invocations for this log stream issued during the expiring SMF interval.
48 30 SMF88LIB 4 binary Minimum BLOCKLEN value of IXGWRITE seen during the expiring SMF interval. Initialized to X'7FFFFFFF' if no SMF activity occurs within an SMF interval.
52 34 SMF88LAB 4 binary Maximum BLOCKLEN value of IXGWRITE seen by this log stream during the expiring SMF interval. Initialized to zero if no SMF activity occurs within an SMF interval.
56 38 SMF88LWB 8 EBCDIC Bytes requested by user application(s) on IXGWRITE macro invocations for this log stream during the expiring SMF interval (FORMAT=LONG FLOATING POINT).
64 40 SMF88LDB 8 EBCDIC Bytes written to DASD for this log stream during the expiring SMF interval (FORMAT=LONG FLOATING POINT).
72 48 SMF88LIO 4 binary Number of times a request was made by system logger to write log stream data to DASD during the expiring SMF interval.
76 52 SMF88LIS 4 binary Number of times system logger had to suspend before writing log stream data to DASD because a previously-initiated write to DASD had not yet completed during the expiring SMF interval.
80 50 SMF88GRP 8 EBCDIC GROUP value for the log stream. Either PROD (production) or TEST.