| Return Code (15) | Reason Code (0) | Meaning |
|---|---|---|
| 00 (X'00') | Successful completion. | |
| 04 (X'04') | Device does not support block identifier. | |
| 08 (X'08') | 01 (X'01') | Incorrect parameter. |
| 08 (X'08') | 02 (X'02') | Incorrect DCB or a DEB error. |
| 08 (X'08') | 03 (X'03') | Environmental error. |
| 08 (X'08') | 11 (X'0B') | Unsuccessful call to ESTAE macro. |
| 08 (X'08') | 12 (X'0C') | Insufficient virtual storage available. |
| 12 (X'0C') | Input/output error. |