Each RSE connection starts several processes which are permanently active. New connections can be refused due to the limit set in
SYS1.PARMLIB(BPXPRMxx)on the amount of processes, especially when users share the same UID (such as when using the default OMVS segment).
- The limit per UID is set by the
MAXPROCUSERkeyword and has a default value of 25.
- The system-wide limit is set by the
MAXPROCSYSkeyword and has a default value of 200.
Another source of refused connections is the limit on the amount of active z/OS® address spaces and z/OS UNIX users.
- The maximum amount of Address Space IDs (ASID) is defined in
MAXUSERkeyword, and has a default value of 255.
- The maximum amount of z/OS UNIX user IDs (UID) is defined in
MAXUIDSkeyword, and has a default value of 200.