User Guide

Overview
Novell Cluster Services Overview and Installation
103-000154-001
August 29, 2001
Novell Confidential
Manual 99a38 July 17, 2001
Cluster Configuration
Typical cluster configurations normally include a shared disk subsystem
connected to all servers in the cluster. The shared disk subsystem can be
connected via high-speed fiber channel cards, cables, and switches, or be
configured to use shared SCSI. If a server fails, another designated server in
the cluster automatically mounts the shared disk volumes previously mounted
on the failed server. This gives network users continuous access to the
volumes on the shared disk subsystem.
Typical resources might include data (volumes), applications, server licenses,
and services. The following figure shows how a typical fiber channel cluster
configuration might look.
Figure 3 Typical Fiber Channel Cluster Configuration
Although fiber channel is the recommended configuration, you can configure
your cluster to use shared SCSI. The following figure shows how a typical
shared SCSI cluster configuration might look.
Sys Sys Sys Sys Sys Sys
Server 1 Server 2 Server 3 Server 4 Server 5 Server 6
Fiber Channel Switch
Shared Disk
System
Network Hub
Fiber
Chann
el
Card(s
)
Network
I
nterface
Card(s)