Controlling Spool Files in the Reader Queue

z/VM gives you options with the commands you use to manipulate spool files in the reader queue. Spool files are collections of data to be processed. Spool files in the reader queue are files that have been read in from a card reader or that were created by a virtual unit record device.

Spool files in the reader queue are destined for user virtual readers; they are primarily the responsibility of those users. As a system operator, you may perform some of the following functions for files destined for service virtual machines. But, in general, you do not need to manipulate spool files in the reader queue.

To control files in the reader queue, you need to be able to:
  • Find out what files are in the reader queue
  • Put one or more files at the top of the reader queue
  • Change one or more attributes associated with a file in the reader queue
  • Put one or more files in the reader queue in system hold
  • Purge one or more files from the reader queue
  • Transfer one or more files from the reader queue.