ISG177E

Explanation
An error caused this system to disrupt the global
resource serialization ring. All the active global resource serialization
systems, including this system, become inactive to global resource
serialization.

System action
The system writes message ISG177E or ISG178E to
the system log (SYSLOG) of each system that was in the ring. All systems
suspend any task that attempts to obtain global resources.
The
systems rebuild the global resource serialization ring.

System programmer response
If you cannot correct the problem
or if you have frequent or unexpected ring disruptions: Search problem reporting databases for a fix for the problem.
See ISG177E and ISG178E recovery in z/OS MVS Planning: Global Resource Serialization.
If no fix exists, contact the IBM® Support
Center.

Source
Global resource serialization

Module
ISGBTC

Routing code
10

Descriptor code
7,11