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UNLOAD_DSN keywords - QPF_OPTIONS command set

The UNLoad_dsn subcommand indicates the unload data set(s) to be used for any UNLoad_DEQueue actions. If you include any UNLoad_DEQueue actions on PROCess statements, or if you want to issue the UNLoad action manually (using the ISPF interface, the QPF_ACTion command, or the operator WTOR), you must also specify the UNLoad_dsn subcommand.

QPF does not allocate unload data sets until an UNLoad_DEQueue action starts. However, once QPF allocates the data sets, they normally remain allocated and available for future UNLoad actions, with the following exception: when each UNLoad action completes, QPF automatically frees any data set name that includes a %DEST symbolic keyword. Otherwise, QPF frees the data set when one of the following occurs:

  • the data set is full or receives an I/O error
  • the Monitor Phase ends
  • a user resets the Monitor Phase using the QPF_OPTIONS RESET keyword
Warning

Note

Because QPF does not support an UNLoad without a DEQueue, the shortened form of UNLoad is interchangeable with UNLoad_DEQueue. Both commands indicate that QPF unloads and dequeues messages.

Related topic

QPF_OPTIONS-command-set-description



 

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