DFS2902I AUTOMATIC SYSTEM CHECKPOINT INITIATED

Explanation

This message is sent two minutes after an XRF takeover if a checkpoint has not been taken by that time. The message is sent to both the IMS MTO console and the z/OS® console. A checkpoint is normally initiated when the last terminal is switched to the new active IMS. The new active IMS is not restartable until the checkpoint is complete. This message indicates terminal switching errors, and that one or more terminals have not switched or have not been counted as switched.

System action

IMS takes a checkpoint.

Programmer response

Because one or more terminals were not counted as switched, an IMS logic error, VTAM® logic error or timing condition occurred during the takeover. Collect all logs, take a console memory dump of the new active IMS if possible, and save all other data necessary to diagnose the problem.