| Offsets | Name | Length | Format | Description | |
|---|---|---|---|---|---|
| 0 | 0 | SMF90DTM | 8 | EBCDIC | System down time, in the form hh-mm-ss or ‘u’. |
| 8 | 8 | SMF90RSN | 65 | EBCDIC | Reason for the IPL or ‘u’. |
| 73 | 49 | SMF90OPR | 20 | EBCDIC | Operators name or ‘u’. |
| 93 | 5D | SMF90ITM | 4 | binary | Time since midnight, in hundredths of seconds, of IPL. |
| 97 | 61 | SMF90DTT | 4 | packed | Date of the IPL, in the form 0cyydddF. See Standard SMF record header for details. |