Administration Guide

Components on which Group Services depends

The Group Services subsystem depends on the following components:

System Resource Controller (SRC)

An AIX feature that can be used to define and control subsystems. The Group Services subsystem is called hags on SP nodes and is called hags.syspar_name on the control workstation, where syspar_name is the name of a system partition. The subsystem name is used with the SRC commands (for example, startsrc and lssrc).

System Data Repository (SDR)

A repository of SP system configuration information.

Topology Services

A PSSP subsystem that is used to determine which nodes in a system can be reached (that is, are running) at any given time. It is often referred to as heartbeat. The Topology Services subsystem is SRC-controlled. It is called hats on SP nodes and is called hats.syspar_name on the control workstation, where syspar_name is the name of a system partition.