Support Services Address Space overview
IBM Security Guardium S-TAP for Db2 uses a Support Services Address Space, also referred to as a Primary Address Space. Learn about how the Primary Address Space works, as well as the implications for using and stopping it.
A Support Services Address Space, also referred to as a Primary Address Space, starts for each z/OS® image after the first instance of IBM Security Guardium S-TAP for Db2 or IBM Db2® Query Monitor for z/OS starts with a MASTER_PROCNAME value that is not yet in use on that z/OS image.
The Primary Address Space is a Service Address Space for all instances of IBM Security Guardium S-TAP for Db2 or IBM Db2 Query Monitor for z/OS that specify the same MASTER_PROCNAME parameter value that is running on the z/OS image. The Primary Address Space acts as a placeholder for shared collector resources, and is similar to other Primary Address Spaces that are used throughout MVS™. For sample, MVS and Db2 both have Primary Address Spaces.
- Never shuts down
- Does not run any code except for its initialization routines
- Owns resources that are needed by the shared collector
- Does not require a formal shutdown and should not be canceled or forced to shut down during the operation of IBM Security Guardium S-TAP for Db2 or IBM Db2 Query Monitor for z/OS.
- Forcing the Primary Address Space to stop causes abnormal termination of all IBM Security Guardium S-TAP for Db2 and IBM Db2 Query Monitor for z/OS subsystems on the LPAR.