$Z A

Function

To halt automatic command processing.

Syntax


>>-$Z A----,ALL------------------------------------------------><

Parameters

ALL: JES2 suspends all automatic command processing.

Authority Required

This command requires system authority. The description of the $T RDRnn command explains how to ensure that the authority of the appropriate MVS™ system command group is assigned.

This command requires control security access authority. For a description of assigning command input authority, see z/OS JES2 Initialization and Tuning Guide, SA32-0991.

Processing Considerations

JES2 automatically issues a $Z A command when:
1. A backlog exists which prevents JES2 from issuing an automatic command for 5 minutes because it is out of CMBs.
2. The operator alters the time forward by more than 24 hours or backward by any time period.
3. Automatic command processing is halted for more than 24 hours (that is, a $Z A has been in effect for more than 24 hours), and then a $A command is entered.
To restart automatic command processing, enter the $S A command.
Automatic commands with time specified must be reentered whenever the elapsed time between a $Z A command and the next $S A command exceeds 24 hours.

Scope

Single member. This command will be in effect for this member only.

Depending on your installation's setup, however, you might want this command to be applied to all members of the MAS (to ensure a consistent environment across the MAS). If so, you can use the MVS ROUTE *ALL command to issue this command to all active members (if the JES2 command character is the same on all members). See z/OS MVS System Commands, SA38-0666 for more information on using the ROUTE *ALL command.

Messages

The $HASP000 message indicates the command was accepted.

Note:

If you enter $TA,ALL (to display the automatic commands) after you issue the $ZA,ALL, you see the display of all of the automatic commands ($HASP604 for each), followed by $HASP601 AUTOMATIC COMMANDS HALTED BY OPERATOR.
JES2 highlights the $HASP601 AUTOMATIC COMMAND HALTED BY SYSTEM message if JES2 halts automatic command processing. If you then issue $TA,ALL, you will receive the $HASP604 message for each automatic command, followed by $HASP601 AUTOMATIC COMMANDS HALTED BY SYSTEM.

Example

 1   $z a,all

  $HASP000 OK

JES2 suspends all automatic command processing.