Automatic allocation of dump data sets is managed through the DUMPDS command. Placing appropriate commands into the COMMNDxx parmlib member allows the function to be established at IPL.
The DISPLAY DUMP command can display information about the last 100 data sets that were automatically allocated during the current IPL. Typical dump inventory management should be done using the Sysplex Dump Directory. The System Dump Directory provides access to all of the cataloged and added dump data sets created across system IPLs. Details about using the User and Sysplex Dump Directory can be found in z/OS MVS IPCS User's Guide.
The installation must manage the space allocated to dump data sets by limiting the volumes (non-SMS) or the classes (SMS) available for automatic allocation of dump data sets. z/OS MVS System Commands contains the syntax of the DUMPDS ADD, DEL, and ALLOC=ACTIVE commands.
For more information about SMS, see z/OS DFSMSdfp Storage Administration.