Operator-initiated entrance into a checkpoint reconfiguration dialog

The operator can initiate a checkpoint reconfiguration dialog; this is generally done to:

Replace a checkpoint data set
Update and start (resume) using a checkpoint data set
Discontinue using a checkpoint data set.

You can enter a reconfiguration dialog at any point in JES2 processing by entering:

$T CKPTDEF,RECONFIG=YES

Note: Several messages throughout the dialog give the option of ‘CANCEL’. If the operator decides to end the reconfiguration process on a member, a response of ‘CANCEL’ will cause JES2 to exit from the dialog. If you replied CKPTDEF to change CKPTn or NEWCKPTn during the reconfiguration, those changes are lost.

Initiating a reconfiguration dialog on any member causes JES2 to automatically initiate the reconfiguration process on all other active members of the MAS configuration. The checkpoint reconfiguration dialog messages, which are used to control JES2-operator interactions, are sent to the console on which the operator initiates the dialog. Starting in z/OS V1R7, these messages are also sent to the consoles with routing code (ROUTCODE) 42.