Description of GETSTHYI

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From Don Wilton:

Version 0.01

GETSTHYI EXEC invokes the STHYI instruction and records the response in an output file in the specified format (SUMMARY, DETAILS, HEX, ALL).


  • GETSTHYI can be run from any CMS user.
  • Refer to the GETSTHYI EXEC header for more information.
  • CP Programming Services chapter 29 describes STHYI and the response buffer.
  • This tool was written as a test driver for use during development of STHYI so the code is a bit of a hack, though has served the author well. Hopefully it will be useful to others as well.

z/VM Service Level Supported

  • Service Level - VM65716 - z13 GA2. Hardware group capping.


  • 2016-05-23 Original z/VM DOWNLOADS version.
  • 2016-05-24 Fix for summary Partition level core counts. V0.01