ServerNet Cluster 6780 Operations Guide (G06.29+, H06.06+, J06.03+)

Controlling ServerNet Cluster Processes

ServerNet Cluster 6780 Operations Guide—525606-004

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ServerNet Cluster Processes

This table describes the ServerNet cluster processes that are affected by the tasks in

this section:

For more details about these ServerNet cluster processes, see Appendix A, ServerNet

Cluster Software.

SCF Process Objects for a ServerNet Cluster

Before using commands to control a ServerNet cluster, be sure to review the objects

that represent processes of the ServerNet cluster subsystem.

Kernel Subsystem PROCESS Objects

SNETMON, MSGMON, and SANMAN are represented by Kernel subsystem

PROCESS objects. For SCF commands for configuring, starting, stopping, and

displaying information about PROCESS, see the SCF Reference Manual for the Kernel

Subsystem.

ServerNet Cluster Subsystem (SCL) SUBSYS Object

The SCL subsystem SUBSYS object represents the way in which the ServerNet

cluster monitor process starts ServerNet cluster services and joins systems to the

ServerNet cluster. For SCF commands for configuring, starting, stopping, and

displaying information about the SUBSYS object, see Section 4, SCF Commands for

SNETMON and the ServerNet Cluster Subsystem.

MSGMON A monitor process that resides in each processor of a server and executes

functions required by the message system. MSGMON is a helper for

SNETMON. MSGMON handles communications between SNETMON and

individual processors. MSGMON also logs events from and generates

events on behalf of the message system. MSGMON was created to relieve

the system monitor subsystem.

SANMAN A process pair that runs in every HP NonStop S-series server connected to a

ServerNet cluster. SANMAN provides the services needed to manage the

external ServerNet fabrics and the system’s access to the fabric.

SNETMON A fault-tolerant process pair that exists on every node in a functioning

ServerNet cluster. It monitors and responds to events relevant to ServerNet

cluster operation. It also manages the ServerNet cluster subsystem. Total

failure of the SNETMON process spawns a new SNETMON.

ServerNet

Cluster

Subsystem

The system configuration environment that enables ServerNet

communication between processors in different nodes of a ServerNet

cluster.