ACTIVE: Displaying all active requests

Explanation: ACTIVE is an optional parameter requesting the status of each DFSMShsm volume, data set subtask, and long-running command, and what each active one is doing.

TCBADDRESS is an optional subparameter of ACTIVE requesting only messages directly related to data movement activities be listed, along with extra information allowing cancellation of the active task.

To aid in virtual storage constraint relief (VSCR), the active parameter will display the amount of virtual storage (above and below the 16M line) that is unallocated and available to DFSMShsm. The two largest free areas are shown to indicate the level of fragmentation.

Defaults: None.

Note: In a common recall queue environment, only recall requests from the host that is issuing the QUERY ACTIVE command are returned.