Cluster Components - Novell OPEN ENTERPRISE SERVER CLUSTER SERVICES 1.8.2 - ADMINISTRATION Manual

iSCSI is another option and is an alternative to fibre channel that can be used to create a low-cost
SAN. The following figure shows how a typical iSCSI cluster configuration might look.
Typical iSCSI Cluster Configuration
Figure 1-5
Network Backbone
Server 1
Ethernet
Card(s)
iSCSI
Initiator

1.3.1 Cluster Components

The following components make up a Novell Cluster Services cluster:
From 2 to 32 Linux servers, each containing at least one local disk device.
Novell Cluster Services software running on each Linux server in the cluster.
A shared disk subsystem connected to all servers in the cluster (optional, but recommended for
most configurations).
High-speed fibre channel cards, cables, and switch or SCSI cards and cables used to connect
the servers to the shared disk subsystem.
Ethernet Switch
Server 2 Server 3
iSCSI iSCSI
Initiator Initiator
Ethernet Switch
Network Backbone
Server 4 Server 5
iSCSI iSCSI
Initiator Initiator
Ethernet
Server 6
Ethernet
Card(s)
iSCSI
Initiator
Storage
System
Overview 13