| Offsets | Name | Length | Format | Description | |
|---|---|---|---|---|---|
| 0 | 0 | SMF90OSM | 4 | binary | Offset to IPL SMF or SET SMF section from start of record, including the record descriptor word (RDW). |
| 4 | 4 | SMF90LSM | 2 | binary | Length of IPL SMF or SET SMF section. |
| 6 | 6 | SMF90NSM | 2 | binary | Number of IPL SMF or SET SMF sections. |
| 8 | 8 | SMF90ODA | 4 | binary | Offset to data set section from the start of record, including the record descriptor word (RDW). |
| 12 | C | SMF90LDA | 2 | binary | Length of the data set section. |
| 14 | E | SMF90NDA | 2 | binary | Number of data set sections. For subtype 9 records, this field will be zero at IPL time, and will be filled in once the MANx data sets are established and known to SMF. |
| 16 | 10 | SMF90OWK | 4 | binary | Offset to subsystem section from the start of the record, including the record descriptor word (RDW). |
| 20 | 14 | SMF90LWK | 2 | binary | Length of subsystem section. |
| 22 | 16 | SMF90NWK | 2 | binary | Number of subsystem sections. |
| 24 | 18 | SMF90OOT | 4 | binary | Offset to subsystem parameter segment. |
| 28 | 1C | SMF90LOT | 2 | binary | Length of subsystem parameter segment. |
| 30 | 1E | SMF90NOT | 2 | binary | Number of subsystem parameter segments. |