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- Description:
- Validate that no resource manager module names are specified in
CSECT IEAVTRML of load module IGC0001C.
- Reason for check:
- Installations should use the RESMGR service instead of IEAVTRML
to define End of Task (EOT) and End of Memory (EOM) resource managers
to the system. If installations use IEAVTRML, RTM calls the resource
manager for every EOT and EOM in the system. In most situations,
this results in thousands of unnecessary invocations of the resource
manager per day which impacts system performance.
- z/OS® releases the check
applies to:
- z/OS V1R11 and later.
- Type of check (local or remote):
- Local
- User override of IBM® values:
- The following shows the default keywords for the check, which
you can override on either a POLICY statement in the HZSPRMxx parmlib
member or on a MODIFY command. This statement may be copied and modified
to override the check defaults:
UPDATE
CHECK(IBMRTM,RTM_IEAVTRML)
ACTIVE
SEVERITY(LOW) INTERVAL(ONETIME) DATE('date_of_the_change')
PARM('ALL')
REASON('Your reason for making the update.')
- Debug support:
- No
- Verbose support:
- Yes. When VERBOSE(YES) is specified, all of the resource managers
found in IEAVTRML will be listed in the message log whether or not
an exception is raised.
- Parameters accepted:
- PARM('ALL') specifies that exceptions should be issued for all
module names specified in IEAVTRML. This is the system default.
- PARM('NEW(value)') specifies that the current contents of IEAVTRML
are to be treated as correct and exceptions should be issued only
for new module names added to IEAVTRML after this time. This specification
persists across restarts of the Health Checker, including IPLs. Note
that the system only recognizes changes to IEAVTRML via an IPL with
CLPA.
- Reference:
- For more information about EOT and EOM resource managers, see Using Resource Managers in the z/OS MVS Programming: Authorized Assembler Services Guide.
- Messages:
- This check issues the following exception messages:
See the IEAVTRH messages in z/OS MVS System Messages, Vol 6 (GOS-IEA).
- SECLABEL recommended for multilevel security users:
- SYSLOW - see z/OS Planning for Multilevel Security and the Common Criteria for
information on using SECLABELs.
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