Allocating the partitioned data set for routing messages

The user must create the PDS before trying to output subcommand messages to it.

The name of the partitioned data set can be included in the JCL used to start IPCS in batch mode by means of DDNAME IPCSPDS, for example:

//IPCSPDS  DD  DSN=IPCSU1.SESS7.PDS,DISP=SHR

If IPCS is started using the TSO command IPCS in line mode or in full-screen mode, you can allocate DDNAME IPCSPDS with the TSO command ALLOCATE, for example:

ALLOC DDNAME(IPCSPDS) DSNAME('IPCSU1.SESS7.PDS') SHR