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Dump Management

The DUMPDS NAME command can be used to establish a pattern for dump dataset names. An example might be: DD NAME=DUMP.D&LYR4.&LJDAY..T&LHHMMSS..&SYSNAME..DMP&SEQ. This would allocate dump datasets dynamically with names based on local date, time, system id and a sequence number. The DUMPDS ADD command can be used to assign an SMS management class to the dump datasets; the SMS attributes of this class could incorporate automatic cleanup after the dump dataset has not been accessed for a specified number of days.

The ISPF panels for IPCS, IBM's dump analysis tool, include an option 3.4 which can be used to locate dynamically allocated dump datasets. Sample REXX code on the REXX page here allows you to display information about the contents of a dump dataset. These EXECs can be invoked from IPCS option 3.4 or ISPF option 3.4 as a line command.

Dump Analysis and Elimination (DAE) allows duplicate dumps to be suppressed. If a sufficient number of dump symptoms are reported and match those for a previous occurence, the dump can be suppressed. IPCS also includes an option 3.5 to display and manage DAE information.

We are currently running z/OS 1.4. These examples work in our environment, but they may need to be reworked for a different environment. These examples are provided "as is". No warranty or support is expressed or implied.

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