








	*SMF Tools*

SMF Type 8 Record

This table shows the record layout for type 8 SMF records
(I/O Configuration).

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

Purpose: Record type 8 is written after an SMF IPL is completed and the SET DATE operator command is issued. This record identifies each device that is online at IPL by device class, unit type, and device number.

It's easy to report on SMF 8 data!

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Spectrum SMF Writer handles the difficult SMF record parsing for you automatically. You just specify which fields you want to see.

Spectrum SMF Writer also converts the arcane date and time fields and reformats them into an attractive report.

Plus, Spectrum SMF Writer can export SMF data as comma delimited files to use on your PC.

SMF Type 8 Record -- I/O Configuration
Offset (Dec.)	Offset (Hex)	Name	Length	Format	Description
0	0	SMF8LEN	2	binary	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.
2	2	SMF8SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF8FLG	1	binary	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.
5	5	SMF8RTY	1	binary	Record type 08 (X'08').
6	6	SMF8TME	4	binary	Time since midnight, in hundredths of a second, when the record was moved into the SMF buffer.
10	A	SMF8DTE	4	packed	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.
14	E	SMF8SID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF8LENN	2	binary	Length of rest of record including this field.
Device Data Section For each device online at IPL, there is a four-byte entry with the following format: (Offset from beginning of record: 20)
0	0	SMF8IODV	4	structure	Device identification. Note: Virtual I/O devices are identified by the following: Device Class 0 Unit Type 0 Device Number X'7FFF'It is important to understand the following: Allocation messages for VIO data sets will show VIO ALLOCATED TO ddname. SMF records will show VIO unit addresses as X'7FFF'. The actual in-storage UCB built for VIO will show address X'3FFF'.For example, the messages: v IEF237I X'3FFF' ALLOCATED TO ddname v IEF237I X'7FFF' ALLOCATED TO ddnameindicate that ddname is not allocated to a Virtual I/O device, but is instead allocated to a real device whose unit address is X'3FFF' or X'7FFF' respectively.
0	0	SMF8DUT	2	binary	Device class and unit type.
2	2	SMF8CHA	2	binary	Device number.

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

Spectrum SMF Writer - the 4GL SMF Report Writer.

SMF Type 8 Record

This table shows the record layout for type 8 SMF records (I/O Configuration).

It's easy to report on SMF 8 data!

This table shows the record layout for type 8 SMF records
(I/O Configuration).