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CVAF component trace z/OS DFSMSdfp Diagnosis SC23-6863-00 |
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The
CVAF component traces the following events:
CVAF captures information in ctrace format in the Device Manager address space (devman). The trace data can optionally be connected to a ctrace output writer using the component name SYSDMO. The devman buffer containing CVAF trace data is included in any system dumps that are taken by the CVAF recovery routines. In addition, the system operator can request that devman take a dump that includes the CVAF trace data. CVAF trace data provides diagnostic information that improves the first failure data capture of CVAF errors. CVAF recording
of trace events must be requested. It is not the
system default. By default, no trace data is recorded by CVAF. When
requesting this trace data, you can specify up
to 16 job names and up to 16 ASIDs. If either the job name or ASID
matches, the record will be traced. Not specifying the job name or
ASID results in all records being traced. To capture CVAF trace
data, enable tracing as follows:
Request all component
trace records for specific
job names and ASIDs as follows:
Note: To capture DADSM
OSVTOC recorded records,
you must add DADSM2 to the list of OPTIONS parameters.
When
tracing is no longer required, it can be disabled with the
following commands:
Use the following
command to request a devman dump that includes
the CVAF ctrace data:
To display the CVAF
ctrace records use the following IPCS command:
For additional information on the use of IPCS, see z/OS MVS Diagnosis: Tools and Service Aids. |
Copyright IBM Corporation 1990, 2014
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