An Introduction to Security in a CSM 1.3 for AIX 5L Environment

8 An Introduction to Security in a CSM 1.3 for AIX 5L Environment

1.2.5 Group Services and Topology Services

Group Services and Topology Services, although included in RSCT, are not

used in the management domain structure of CSM. These two components are

used in peer domain clusters for applications, such as High-Availability Cluster

Multiprocessing (HACMP) and General Parallel File System (GPFS), providing

node and process coordination and node and network failure detection.

Therefore, for these applications, a .rhosts file may be needed (for example, for

HACMP configuration synchronization).

These services are often referred to as

hats

and

hags

: high availability Group

Services daemon (hagsd) and high availability Topology Services daemon

(hatsd).

For detailed information about RSCT, refer to the RSCT product manual

IBM

Reliable Scalable Cluster Technology for AIX 5L: RSCT Guide and Reference

,

SA22-7889.