Record mapping
The SMF type 7 record is mapped as follows.
Header/self-defining section
This section contains the common SMF record headers fields and the triplet fields (offset/length/number), if applicable, that locate the other sections on the record.
| Offsets | Name | Length | Format | Description | |
|---|---|---|---|---|---|
| 0 | 0 | SMF7LEN | 2 | binary | Record length. This field and the next field (total of four bytes) form the RDW (record descriptor word). See Standard and extended SMF record headers for a detailed description. |
| 2 | 2 | SMF7SEG | 2 | binary | Segment descriptor (see record length field). |
| 4 | 4 | SMF7FLG | 1 | binary | System indicator:
|
| 5 | 5 | SMF7RTY | 1 | binary | Record type 7 (X'07'). |
| 6 | 6 | SMF7TME | 4 | binary | Time since midnight, in hundredths of a second, when the record was built into the SMF buffer. |
| 10 | A | SMF7DTE | 4 | packed | Date when the record was moved into the SMF buffer, in the form
0cyydddF. See Standard and extended SMF record headers for a detailed
description. |
| 14 | E | SMF7SID | 4 | EBCDIC | System identification (from the SID parameter). |
| 18 | 12 | SMF7NRO | 2 | binary | Number of SMF records lost because no SMF data sets were available for recording. Unsigned, count up to 65,535. This field is marked as invalid, and is set to zero when SMF7NRF is ON. SMF7NROX is the 4-byte equivalent of this field. |
| 20 | 14 | SMF7STM | 4 | binary | When SMF7DRP is off, this is the time when the buffers condition began. When SMF7DRP is on, this is the time when the DROP record filter became active. This field is in hundredths of a second. |
| 24 | 18 | SMF7STD | 4 | packed | When SMF7DRP is off, this is the date when the buffers condition began. When SMF7DRP is on,
this is the date when the DROP record filter became active. This field is in packed decimal format:
00yydddF. |
| 28 | 1C | SMF7FL1 | 1 | binary | Flag byte:
|
| 29 | 1D | SMF7RSV1 | 2 | Reserved. | |
| 31 | 1F | SMF7DTYP | 1 | character | The type of record that was dropped by the filter. This field is zero unless SMF7DRP is ON.
SMF7DTYPX is the 2-byte equivalent of this
field.![]() |
| 32 | 20 | SMF7NROX | 4 | binary | Number of SMF records lost because no SMF data sets were available for recording. Unsigned, 4-byte equivalent of SMF7NRO. |
| 36 | 24 | SMF7LSN | 26 | character | The name of the log stream associated with the data space that experiences the loss. Only filled in when SMF7LSD is ON. |
| 62 | 3E | SMF7TBLS | 8 | binary | The number of bytes lost during SMF initialization. This field will be non-zero if the SMF temporary buffer is exhausted and, therefore, records are lost during SMF initialization. |
70![]() |
46![]() |
SMF7DTYPX![]() |
2![]() |
binary![]() |
The type of record that was dropped by the filter. This field is only valid when SMF7DRP is
on. This field is the 2–byte equivalent of SMF7DTYP. It reports all record type values
(0–2047). When the dropped record type is a value greater than 255, SMF7DTYP will contain a
value of 126, which is the extended type indicator
value.![]() |
SMF7DTYPX is the 2-byte equivalent of this
field.