ServerNet Cluster 6780 Operations Guide (G06.24+, H06.03+)

ServerNet Cluster 6780 Operations Guide—525606-002
1-1
1 Monitoring a ServerNet Cluster
This section describes how to perform tasks that allow you to check the general health
of the ServerNet Cluster without altering the state of the cluster or any of its
components.
Understanding the Tools for Monitoring a
Cluster
To perform the monitoring tasks in this section, you should be familiar with the HP
NonStop Open System Management (OSM) Interface and the Subsystem Control
Facility (SCF):
The first part of this section describes monitoring tasks using OSM. See Using OSM to
Monitor a ServerNet Cluster on page 1-3.
The second part of this section describes monitoring tasks using SCF. See Using SCF
to Monitor a ServerNet Cluster on page 1-18.
The features of OSM and SCF overlap considerably. As you become familiar with the
tools, you might prefer to use one tool for most of the monitoring tasks.
Understanding the Components of a ServerNet
Cluster
This manual describes how to monitor the components of a ServerNet cluster that uses
the layered topology, built with the HP NonStop ServerNet Switch (model 6780). The
layered topology can scale by adding up to four cluster switch layers and three zones.
The layered topology supports up to 64 ServerNet nodes.
To learn more about the layered topology and the hardware components within it, see
the ServerNet Cluster 6780 Planning and Installation Guide.
For a description of the software components of a ServerNet cluster, see Appendix A,
ServerNet Cluster Software.
OSM You use the OSM Service Connection to perform many of the monitoring
tasks described in this section. Figure 1-1
on page 1-4 shows the
Management window of the OSM Service Connection. The view pane (on the
right side of the Management window) shows a graphical representation of
the local system. The tree pane (on the left side of the Management window)
contains names of resources in a hierarchical tree structure. For more detail
on using the OSM Service Connection, see the OSM online help.
SCF You use SCF commands to display general information about the ServerNet
Cluster subsystem. For detailed syntax and descriptions of the SCF
commands used in this section, see Section 4, SCF Commands for
SNETMON and the ServerNet Cluster Subsystem, and Section 5, SCF
Commands for the External ServerNet SAN Manager Subsystem.