z/OS DFSMS Installation Exits
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Characteristics of the Pre-ACS Installation Exit

z/OS DFSMS Installation Exits
SC23-6850-01

The pre-ACS installation exit must:
  • Handle multiple requests (reentrant)
  • Have AMODE 31
  • Have RMODE ANY

The exit routine is given control in task mode and protect key zero with no locks held and 31-bit addressing mode. It must not operate in cross-memory mode.

Parent topic: Pre-ACS Installation Exit IGDACSXT

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