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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=0Sets online return code
RETCODEB=0Sets batch (single user) return code
CLASS=IInformation class; the message can be suppressed with the X'02' bit setting of the MSGCTL parameter
AUDITMSWrites the message with line type MS to the audit trail
NOCOUNTDoes not increment the error count (ERCNT) parameter

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