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APAR SYSMOD: Fixing problems with an element z/OS system installation and maintenance |
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You may sometimes find it is necessary to correct a serious problem that occurs on your system before a PTF is ready for distribution. In this situation, IBM® supplies you with an authorized program analysis report (APAR). An APAR is a fix designed to quickly correct a specific area of an element or replace an element in error. You install an APAR SYSMOD to implement a fix, thereby updating the incorrect element. In Figure 1, the shaded section
shows an area of MOD2 containing an error.
The processing of the APAR SYSMOD provides a modification for object module MOD2. During the installation of the APAR SYSMOD, MOD2 is updated (and corrected) in load module LMOD2. Figure 2 shows an example
of a simple APAR SYSMOD.
Figure 2. Example
of a simple APAR SYSMOD
++APAR(APAR001) /* SYSMOD type and identifier. */. ++VER(Z038) FMID(FUN0001) /* Apply to this product */ PRE(UZ00004) /* at this service level. */. ++ZAP(MOD2) /* Update this module */ DISTLIB(AOSFB) /* in this distribution library. */. ... ... zap control statements ... The APAR SYSMOD always has the installation of a function SYSMOD as a prerequisite, and can also be dependent upon the installation of other PTF or APAR SYSMODs. PTF, APAR, and USERMOD SYSMODs all have
the function SYSMOD as a prerequisite. In addition to their dependencies on
the function SYSMOD:
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