IPCS command — start an IPCS session

Use the IPCS command to start an IPCS session. IPCS is a TSO/E command that initializes the IPCS environment. Once the IPCS command is processed, you may use the IPCS subcommands. Before running the IPCS command, you must allocate a dump directory.

Related subcommands
- END
- SETDEF

Syntax

  IPCS
              [ PARM(nn|00) | NOPARM ]
              [ TASKLIB(dsname) | NOTASKLIB ]

Operands
PARM(nn|00)

NOPARM

PARM(nn) specifies the member of parmlib that IPCS uses as its initialization parameters for this session. The first six characters of the member name are “IPCSPR” and nn is the 2-digit decimal number that is appended to it. When specifying the number, a leading zero is optional.
The IPCSPRnn member specifies parameters for problem management and data set management facilities. See z/OS MVS Initialization and Tuning Reference for the syntax of the IPCSPRnn parmlib member.

NOPARM specifies that no IPCSPRnn member of parmlib should be accessed for this IPCS session. If NOPARM is specified, IPCS facilities for problem analysis may be used during the session, but those for problem management and data set management may not be used.

The default is PARM(00), which causes IPCSPR00 to be used.

TASKLIB(dsname)

NOTASKLIB
TASKLIB(dsname) specifies a list of load module libraries to be searched for analysis programs. The libraries must be cataloged and will be searched in the order entered.
NOTASKLIB specifies that only the standard load module libraries should be searched for analysis programs during the IPCS session.
For example, request that IPCS search the load libraries IPCSU1.DEBUG.LOAD and IPCSU1.DIAGNOS.LOAD, enter:
```
ipcs tasklib('ipcsu1.debug.load' 'ipcsu1.diagnos.load')
```
IPCSU1.DEBUG.LOAD will be searched for programs before data set IPCSU1.DIAGNOS.LOAD.
You may enter each data set name using one of the following notations:
- Enter a fully-qualified data set name within apostrophes. For example, to specify data set IPCSU1.DEBUG.LOAD, enter:
  ipcs tasklib('ipcsu1.debug.load')
- A data set name beginning with your TSO/E prefix qualifier and ending with the qualifier “LOAD” may be designated by entering the qualifiers between them. If your TSO/E prefix is IPCSU1 and you want to specify data set IPCSU1.DEBUG.LOAD, enter:
  ipcs tasklib(debug)
  
  The data set name entered is edited in three ways:
  Lowercase letters are changed to uppercase.
  
  The TSO/E prefix qualifier is added before the entered name.
  
  The final qualifier “LOAD” is appended to the name.
- A data set name beginning with your TSO/E prefix qualifier and ending with the qualifier “LOAD” may also be designated by entering the qualifiers including the final qualifier. For example, if your TSO/E prefix is IPCSU1, the following command specifies data set IPCSU1.DEBUG.LOAD:
  ipcs tasklib(debug.load)
  
  The following command specifies data set IPCSU1.LOAD:
  ipcs tasklib(load)
  
  The data set name entered is edited in two ways:
  Lowercase letters are changed to uppercase.
  
  The TSO/E prefix qualifier is added before the name.