OS/390 MVS IPCS User's Guid

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Start analyzing one source using IPCS dialog panels. Then, enter the IPCS
Browse panel and specify a different source on it. The other IPCS dialog panels
will continue showing the first source.
Start analyzing one source using IPCS dialog panels. Then, enter a
subcommand on the IPCS Commands panel and specify a different source in the
subcommand. All further subcommands entered on the IPCS Commands panel
will apply to the second source, but the other panels will apply to the first source.
At any time, you can enter a subcommand specifying the first source to make
subcommands entered on the IPCS Commands panel apply to the first source.
PROFILE Default Values
You can specify default values for the line size and the number of lines per page for
printed output through the PROFILE subcommand. These defaults are recorded in
your dump directory and remain in effect until you change them with another
PROFILE subcommand.
See the PROFILE subcommand in OS/390 MVS IPCS Commands for more
information.
Address Processing Parameters
The ASID and CPU parameters are address processing parameters that are part of
the data description parameter. The data description parameter is used to describe
storage in a dump. The ASID and CPU parameters are null until you specify a
dump data set. When you specify a dump and access it with a dump analysis
subcommand, that subcommand sets the ASID and CPU parameters to describe an
address space contained in that dump.
If possible, IPCS sets the ASID parameter to the address space identifier
associated with the problem that caused the dump. However, it might not always be
possible to do so, as in the following cases:
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When a dump is initiated through an operator command, a stand-alone dump
program, or a similar external mechanism, IPCS might not be able to identify the
address space associated with the failure.
v When there is truncation during recording or I/O errors during transcription, data
needed to establish an appropriate default address space might not be present in
a dump data set.
In such circumstances, IPCS attempts to select a usable address space from which
analysis can proceed, although the address space selected might not be one in
which a failure occurred.
If the dump is a stand-alone dump and if a store status operation was performed,
the CPU parameter is set to the IPLed central processor number. Otherwise, the
CPU parameter is set to another processor in the configuration or NOCPU is used.
SETDEF rejects any attempt to set these parameters before you specify a dump.
See OS/390 MVS IPCS Commands for more information about the data description
parameter and address processing parameters.
Specifying the Source
To analyze data in a source, specify the data set name as the source on the IPCS
Default Values panel, in a SETDEF subcommand, or in a parameter on a
subcommand. If the source is active storage, specify the MAIN parameter.
Chapter 2. Starting IPCS 17