Guardian Procedure Calls Reference Manual

the current backup to become the primary process and to begin processing from the latest
call to the CHECKPOINT[MANY][X] procedure.
• Identification of the backup process
The system identifies the process to be affected by the CHECKSWITCH operation from the
process' mom field in the process control block (PCB). For named process pairs, this field is
automatically set up during the creation of a backup process.
CHECKSWITCH Procedure 165