Emergency restart failures

Emergency restart backs out incomplete changes from programs that were active at the time of failure. However, damaged logs or message queues might prevent emergency restart from completing. If this occurs, you might be able to perform an emergency restart from a previous checkpoint or by specifying FORMAT ALL on the /ERESTART command.

If you are running an IMS DB/DC system, and an emergency restart fails, you do not have to cold start the entire system. You can use the commands /ERE COLDCOMM and /ERE COLDBASE. These commands cold start part of the system while restarting the other part: /ERE COLDCOMM cold starts the DC part and restarts the rest, while /ERE COLDBASE cold starts the DB part and restarts the rest.

If you are running an IMS DBCTL or DCCTL system, and an emergency restart fails, you must cold start the entire system using the /ERE COLDSYS command.