id IFB010D ENTER 'IPL REASON, SUBSYSTEM ID' or 'U'The IPL reason code, (see Table 1), and the subsystem ID, (see Table 2), are then included in the record when it is written.
Restart continues after either a valid reply or a ‘U’ reply. In the case of a ‘U’ reply, the IPL record is formatted with zeros in the subsystem ID field and a DF (default values) in the IPL reason field.
| Code | Reason | Description |
|---|---|---|
| NM | Normal. | Normal system initialization. |
| IE | IBM® hardware/programming problem, CE/PSR not required. | System restarted after a stop caused by a hardware failure or IBM programming problem, and a customer engineer (CE)/program support engineer (PSR) was not required. |
| IM | IBM hardware/programming problem, CE/PSR required. | System restarted after a stop caused by a hardware failure or IBM programming problem, and it was necessary for a CE/PSR to correct problem. |
| ME | Media. | An IBM hardware unit failed because of faulty or damaged media, such as a damaged tape or disk. |
| UN | Unknown. | An undetermined hardware or software failure. |
| OP | Operational. | An operator error or procedural problem. |
| UP | User program. | A program other than an IBM supplied control program or programming product failed in such in a way as to cause a system restart. |
| EN | Environmental. | A failure other than hardware/software or operational (such as power failure, air conditioning, etc.) caused system to be restarted. |
| CE | CE/PSR has system. | System restarted at CE/PSR request to correct problem. |
| DF | Default. | Operator replied ‘U’ or entered a null line in response to system message IFB010D. |
| ID | Subsystem Name | Components |
|---|---|---|
| 00 | Null. | Subsystem is unknown or subsystem code is not required by reason code. |
| 10 | Processor. | Central processor, channels, storage units, operator consoles. |
| 20 | Direct access storage device (DASD). | Direct access storage devices and their control units. |
| 30 | Other. | All devices other than those specified under other subsystem IDs. |
| 40 | Tape. | Magnetic tape devices and their control units. |
| 50 | Card/Print. | Card (unit record) and printing devices. |
| 60 | MICR/OCR. | Magnetic ink (MICR) and optical (OCR) character recognition devices. |
| 70 | Teleprocessing. | Teleprocessing devices and their control units. |
| 80 | Graphics/Display/Audio. | Graphic, display, and audio devices. |
| 90 | IBM system control program. | IBM programming system. |
| 92 | IBM programming product. | IBM programming products such as FORTRAN, COBOL, or RPG. |