Explanation
The operator entered a VARY dev,OFFLINE,FORCE
command for a global resource serialization channel-to-channel (CTC)
device. Global resource serialization can either keep or free the
CTC.
In the message text:
- dev
- The device number of the CTC device.
System action
VARY command processing stops until the operator
enters a reply.
Operator response
Choose one of the following replies:
- KEEP
- To have global resource serialization retain its allocation of
the CTC. Global resource serialization can then use the CTC if it
is brought back online.
This is usually the best reply.
- FREE
- To remove the CTC from global resource serialization allocation.
Another subsystem or component can then allocate the CTC. Once the
CTC is removed, global resource serialization can never reallocate
it.
Reply FREE if you want to remove the CTC from global
resource serialization permanently, and want to reallocate it for
other purposes, such as cross-system coupling facility (XCF) signalling.
Source
Global resource serialization
Module
Routing code
Descriptor code