ISG376I
GLOBAL RESOURCE SERIALIZATION FREEING STORAGE BUFFERS DUE TO reason DIAG= diag1

Explanation

Global resource serialization (GRS) is freeing internally managed storage buffers. This does not affect GRS processing except that it must obtain more storage when needed instead of using the preallocated buffers.

In the message text:

reason is one of the following values:
REAL STORAGE SHORTAGE
The system is constrained on real storage as indicated by the ENF 55 signal.
AUX STORAGE SHORTAGE
The system is constrained on auxiliary storage as indicated by the ENF 55 signal.
BUFFER THRESHOLD EXCEEDED
The system exceeded one or more thresholds associated with the internally managed storage buffers as determined by GRS.
diag1
This field is for diagnostic data.

System action

Global resource serialization frees the internal storage buffers so that this virtual memory is no longer backed by real storage.

In the cases of real or auxiliary storage shortage, GRS will repopulate the internal buffers when the system storage constraint is relieved.

In the case of the buffer threshold being exceeded, this is normal processing after heavy ENQ activity. This message merely identifies how the system is self-managing its resources, and GRS will immediately repopulate the internal buffers because it receives new requests.

Operator response

None

System programmer response

None

Programmer response

None

Problem determination

None

Source

Global resource serialization

Module

N/A

Routing code

10

Descriptor code

4

Parent topic: ISG messages