ZHPF command: Difference between revisions
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==Syntax== | ==Syntax== | ||
<p class="syntax">ZHPF </p> | <p class="syntax">ZHPF [<var class="term">filename</var> | *]</p> | ||
<p>where:</p> | |||
<var class="term">filename</var> specifies a single file | |||
<nowiki>*</nowiki> indicates all local files opened by all users | |||
<p class="note"><b>Note:</b> <var class="term">filename</var> and * are available as of version 7.7.</p> | |||
If neither <var class="term">filename</var> nor * is specified, <var>ZHPF</var> prints zHPF-related information for all data sets for the file currently opened by the user. | |||
<var>ZHPF</var> displays the following message for each data set in the file to indicate whether [[Performance monitoring and tuning#High Performance FICON (zHPF)|zHPF type I/O]] can be used for the data set: | <var>ZHPF</var> displays the following message for each data set in the file(s) to indicate whether [[Performance monitoring and tuning#High Performance FICON (zHPF)|zHPF type I/O]] can be used for the data set: | ||
<p class="code">M204.2953: File <var class="term">filename</var> <var class="term">dataset_name</var> zHPF capabilities <var class="term">hex_values</var> Supported: - <var class="term">indicator</var></p> | <p class="code">M204.2953: File <var class="term">filename</var> <var class="term">dataset_name</var> zHPF capabilities <var class="term">hex_values</var> Supported: - <var class="term">indicator</var></p> | ||
<p>where:</p> | |||
<var class="term">hex_values</var> represent the existing zHPF capabilities <br /> | <var class="term">hex_values</var> represent the existing zHPF capabilities <br /> | ||
<var class="term">indicator</var> has one of the following values: | <var class="term">indicator</var> has one of the following values: | ||
Revision as of 15:50, 9 October 2015
Summary
- Privileges
- System manager
- Function
- Checks zHPF availability for the most recently opened file
Syntax
ZHPF [filename | *]
where:
filename specifies a single file
* indicates all local files opened by all users
Note: filename and * are available as of version 7.7.
If neither filename nor * is specified, ZHPF prints zHPF-related information for all data sets for the file currently opened by the user.
ZHPF displays the following message for each data set in the file(s) to indicate whether zHPF type I/O can be used for the data set:
M204.2953: File filename dataset_name zHPF capabilities hex_values Supported: - indicator
where:
hex_values represent the existing zHPF capabilities
indicator 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 |
Usage notes
ZHPF is available as of Model 204 Version 7.6.