DFS1948 CQS READ FOUND ANOTHER SYSTEMS MESSAGE NODE x USER y
Explanation
IMS identified a Fast Path reply message that belonged to another IMS system in the sysplex during a scheduled read to the Shared Queues facility.
When using the same LTERM name on multiple systems in a shared queues sysplex, all Fast Path reply messages must be processed by the system at the originating terminal. This means that while a Fast Path response mode operation is still in-progress on one IMS system, the same LTERM name cannot be used, simultaneously or serially, by a terminal on another IMS system.
This is an IMS Transaction Manager restriction for Fast Path in a shared queues environment.
System action
IMS writes a 6701-AER1 diagnostic record to the log and makes the message generally available again to the sysplex through shared message queue support. For ETO sessions, the signon for USER y is failed. For non-ETO, the session established with NODE x is ended.
Operator response
Further attempts to sign on USER y or logon NODE x will repeat this error condition until the Fast Path response mode is reset or the message is dequeued from the shared queues facility. The originating terminal might receive the message and terminate the Fast Path response mode.