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SMF Type 0 Record

This table shows the record layout for type 0 SMF records
(IPL Header).

List of other SMF record layouts available.
List of sample SMF reports.

Purpose: Record type 0 is written after every SMF initialization. It includes the virtual and central storage sizes and some of the SMF options in effect. See record type 90 (subtype 9) for information about the IPL of SMF.

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SMF Type 0 Record -- IPL Header
Offset
(Dec.)
Offset
(Hex)
NameLengthFormatDescription
00SMF0LEN2binary
Record length. This field and the next field (total of four bytes) form the RDW (record descriptor word). See “Standard SMF Record Header” on page 13-1 for a detailed description.
22SMF0SEG2binary
Segment descriptor (see record length field).
44SMF0FLG1binary
System indicator: Bit Meaning When Set 0-2 Reserved 3-6 Version indicators* 7 Reserved.*See “Standard SMF Record Header” on page 13-1 for a detailed description.
55SMF0RTY1binary
Record type 0 (X'00')
66SMF0TME4binary
Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10ASMF0DTE4packed
Date when the record was moved into the SMF buffer, in the form 0cyydddF. See “Standard SMF Record Header” on page 13-1 for a detailed description.
14ESMF0SID4EBCDIC
System identification (from the SID parameter).
1812SMF0JWT4binary
Limit, in minutes, of continuous wait for the job (taken from JWT parameter).
2216SMF0BUF4binary
This field contains meaningless information.
261ASMF0VST4binary
Number of 1K bytes in virtual storage.
301ESMF0OPT1binary
SMF options Bit Meaning When Set 0 Reserved 1 Reserved 2 Reserved. 3 Data set accounting. Record types selected. This bit is on when one of the following record types is selected: 14, 15, 17, 18, 62, 63, 64, 67 or 68. (See “Selecting SMF records” on page 4-2.) 4 Volume accounting. Record types 10 or 69 selected. (See “Selecting SMF records” on page 4-2.) 5 Reserved. 6 Type 17 records will be written for temporary data sets (REC(ALL)). 7 Reserved.
311FSMF0RST4binary
Number of 1K bytes in central storage.
3523SMF0RSV1--
Reserved.
3624SMF0OSL8EBCDIC
MVS product name.
442CSMF0SYN8EBCDIC
System name (from the SYSNAME parameter in the IEASYSxx parmlib member).
5234SMF0SYP8EBCDIC
Sysplex name (from the SYSPLEX parameter in the COUPLExx parmlib member).

The table above is based on the description provided by IBM in its "MVS Systems Management Facilities (SMF)" manual.

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