Generating a suppressed dump
You may want to obtain a dump that is being suppressed. Perhaps
the first dump was ignored and thrown out, but since then the dump
has been requested often enough so that you would like to analyze
the dump. Do the following to obtain the suppressed dump through
the IPCS TAKEDUMP option:
- Customize the TSO user ID that will invoke the TAKEDUMP action.
Make sure it:
- has authority to issue an MVS™ operator SET command and, if DAE is active in a sysplex, the ROUTE command
- has RACF® UPDATE access to the DAE data set.
- Ensure that the ADYSET01 member(s) contains DAE=STOP (or DAE=STOP,GLOBALSTOP in a sysplex).
- Check that the active IKJTSOxx member includes the program name ADYOPCMD in the AUTHCMD NAMES section.
- In a sysplex, the maximum benefit is realized when DAE is started using ADYSETxx members which contain at least SHARE(DSN) — enabling shared data set activities.
- Use the IPCS DAE dialog Panel to issue action code T (the TAKEDUMP option) on the line showing the symptom string of interest.
To process the TAKEDUMP option of the IPCS DAE dialog, DAE processing
is stopped, dialog processing occurs, and DAE processing is restarted
on the systems involved. There are some cases where a particular system
may end up using different DAE parameters from those it was previously
using. Table 1 illustrates possible results.
For this discussion there are two systems (SY1 and SY2), and five
ADYSETxx members involved. Members ending with G1 and G2 include GLOBAL(DSN,OPTIONS)
parameters. Members ending with S1 and S2 have SHARE(DSN,OPTIONS)
without GLOBAL options. The center column in Table 1 indicates the system where the TSO user is issuing the TAKEDUMP
request.
Start State | TSO | Final State | ||
---|---|---|---|---|
SY1 | SY2 | SY1 | SY2 | |
G1 | G1 | SY1 | G1 | G11 |
S1 | S2 | SY1 | S1 | S12 |
S1 | S2 | SY2 | S2 | S22 |
S1 | G1 | SY1 | S1 | S12 |
S1 | G2 | SY2 | G2 | G22 |
G2 | S2 | SY2 | S2 | S22 |
00 | * | SY1 | 00 | *3 |
Note:
|
The system will generate the next dump for the symptom string. After that dump, DAE resumes suppressing dumps for the symptom string.
Note: Despite specifying action code T, the dump might still be suppressed.
See Determining why a dump was suppressed for the reasons, other than
DAE suppression.