AIX: How to list subservers of a specific subsystem which use signal communication?

Question

I know that we can list the subservers of a subsystem by using the command lssrc -l -s subsystem_name command. But this does not work when the subsystem uses the signal communication as the communication type with srcmstr daemon. Is there an any kind of way to know what are the subservers of a particular subsystem which use signal communication? Can we find them by inspecting the subsystem object? If so where is it located?

Answer 1

Since lssrc -ls reports an error when the subsystem only supports signal communication, decide based on the return code:

lssrc -l -s portmap > /dev/null || echo portmap only supports signal communication.

Alternatively, you can query the ODM for the subsystem's "contact" value equaling 2; this will return a list of subsystems that support signal communication:

odmget -q contact=2 SRCsubsys | grep subsysname