ServerNet Cluster 6780 Operations Guide (G06.28+, H06.05+)

SCF Commands for SNETMON and the ServerNet

Cluster Subsystem

ServerNet Cluster 6780 Operations Guide—525606-003

4-4

STARTSTATE Attribute for the ServerNet Cluster

Subsystem

STARTSTATE Attribute for the ServerNet

Cluster Subsystem

The start state configuration (STARTSTATE attribute) of the SCL subsystem SUBSYS

object controls the way in which the ServerNet cluster monitor process joins the

system to the ServerNet cluster.

The ServerNet cluster monitor process (SNETMON) is usually launched automatically

by the $ZPM persistence manager as soon as any of the processors configured for the

ServerNet cluster monitor process are reloaded (assuming the ServerNet cluster

monitor process is configured with the STARTMODE attribute set to SYSTEM).

Once the ServerNet cluster monitor process is started, it checks the SUBSYS object

start state (STARTSTATE attribute) to determine whether to automatically bring the

ServerNet cluster subsystem to the STARTED logical state. Even though the

ServerNet cluster monitor process is running, the system does not join the ServerNet

cluster until the ServerNet cluster subsystem is in the STARTED logical state.

Figure 4-1. ServerNet Cluster Subsystem States

Note. Do not confuse the PROCESS object STARTMODE attribute with the SUBSYS object

STARTSTATE attribute. The STARTMODE attribute controls the way the $ZPM persistence

manager launches the ServerNet cluster monitor process. (See the ADD PROCESS

command description in the SCF Reference Manual for the Kernel Subsystem.)

vst011.vsd

STOPPING

STARTED

STARTING

STOP

START

STOPPED