If automatic primary space management has run to completion and you want to start automatic primary space management again, use the following procedure:

1. Issue one or both of the following PATCH commands:
   • For SMS volumes:

     PATCH  .MCVT.+414 X'00000000'       /* Specify a new minimum processing */
                                         /* interval for SMS volumes         */
                                         /* processed by automatic           */
                                         /* primary space management.        */

   • For non-SMS volumes:

     PATCH  .MCVT.+488 X'00000000'       /* Specify a new minimum processing */
                                         /* interval for non-SMS             */
                                         /* volumes processed by automatic   */
                                         /* primary space management.         */

2. Issue the SETSYS PRIMARYSPMGMTSTART command to define a new start window. Specify a process window that has a planned start time after the time that automatic primary space management last ended. You can determine the time that automatic primary space management last completed by examining the migration activity log.

Automatic primary space management starts immediately if the current time is in the new process window. If the current time is not in the new process window, automatic primary space management starts automatically when the planned start time occurs.