CA-GSS/ISERV Commands › CA-GSS Initialization Parameters › PRIMARY

PRIMARY

Use the PRIMARY parameter to indicate whether this CA‑GSS address space is the primary CA‑GSS address space.

Syntax

Use this format for the PRIMARY parameter:

PRIMARY {YES|NO}

Arguments

The PRIMARY parameter takes these arguments:

Usage Notes

• Each z/OS image can have exactly one primary CA‑GSS address space, but it can have many secondary CA‑GSS address spaces.
• Service requests that are not routed to a particular address space (by subsystem ID) are automatically routed to the primary one.
• By default, the address space that executes the GSSMAIN program is considered primary, while address spaces that execute the SRVSYS program are considered secondary.
• The GSSMAIN program reserves a system linkage index (LX) for cross-memory communication. When GSSMAIN terminates, the system marks the address space as non-reusable. Therefore, if you need to cycle CA‑GSS repeatedly (for example, during initial installation and testing), you may want to execute the GSSMAIN program as a secondary CA‑GSS address space. This allows you to cycle your primary CA‑GSS address space without destroying address spaces.