M204.2953
M204.2953 File token token2 zHPF capabilities hexValue hexValue2 hexValue3 Supported: token3
This informational message displays zHPF capabilities for each data set in a currently open file. The Supported: value in the message, token3, shows whether zHPF type I/O, called "transport mode I/O," can be used for the data sets.
The message's three hexValue bytes represent the existing zHPF capabilities as shown in the following tables:
- Byte 1: ZHPF_FLAG1: zHPF Channel Program Information Area, Capabilities flag 1
Value Meaning X'80' all of the online paths for the device support bidirectional data for zHPF I/O requests. X'40' zHPF is supported for EXCPVR requests X'20' The incorrect length facility is supported by the processor X'10' zHPF is supported for EXCP virtual requests - Byte 2: ZHPFD_FLAG1: zHPF DASD Feature Information Area, Capabilities flag 1
Value Meaning X'80' Phase 0 zHPF features are supported X'20' Multi-track operations are supported X'08' Transfer TCA Extension (TTE) DCW supported X'04' Phase 1 zHPF features are supported X'02' Imbedded Locate Records are supported X'01' Format and Update writes in same chnl pgm - Byte 3: ZHPFD_FLAG2: zHPF DASD Feature Information Area, Capabilities flag 2
Value Meaning X'80' zHPF Format Write supported X'40' zHPF TCAX Pad fix
token3 has one of the following values:
| Value | Meaning |
|---|---|
| YES | zHPF is supported for dataset_name in filename |
| NO | hardware or z/OS support for zHPF functionality is insufficient (for example when z/OS runs under VM) |
| N/A | zHPF support is not available at all at the z/OS or hardware level |
Response: No response is needed. This message is for information only.
Version introduced: 7.6
Message attributes:
| RETCODEO=0 | Sets online return code |
|---|---|
| RETCODEB=0 | Sets batch (single user) return code |
| CLASS=I | Information class; the message can be suppressed with the X'02' bit setting of the MSGCTL parameter |
| AUDITMS | Writes the message with line type MS to the audit trail |
| NOCOUNT | Does not increment the error count (ERCNT) parameter |