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3.3 Shared Disk System Requirements
A shared disk system (Storage Area Network, or SAN) is required for each cluster if you want data
to be highly available. If a shared disk subsystem is used, ensure the following:
3.4 Rules for Operating a Novell Cluster Services
SAN
When you create a Novell Cluster Services system that utilizes shared storage space (a Storage Area
Network, or SAN), it is important to remember that all servers attached to the shared disks, whether
in the cluster or not, have access to all of the data on the shared storage space unless you specifically
prevent such access. Novell Cluster Services arbitrates access to shared data for all cluster nodes,
but cannot protect shared data from being corrupted by noncluster servers.
3.5 Installing Novell Cluster Services
It is necessary to install SLES 9/OES on every server you want to add to a cluster. You can install
Novell Cluster Services and create a new cluster, or add a server to an existing cluster either during
the SLES 9/OES installation or afterwards, using YaST.
If you are creating a new cluster, the YaST setup tool
If you are adding a server to an existing cluster, the YaST setup tool
You can install up to 32 nodes in each cluster.
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OES Novell Cluster Services 1.8.2 Administration Guide for Linux
At least 20 MB of free disk space on the shared disk system for creating a special cluster
partition
The Novell Cluster Services installation automatically allocates one cylinder on one drive of
the shared disk system for the special cluster partition. Depending on the location of the
cylinder, the actual amount of space used by the cluster partition may be less than 20 MB.
The shared disk system is properly set up and functional according to the manufacturer's
instructions before installing Novell Cluster Services.
We recommend that the disks contained in the shared disk system are configured to use
mirroring or RAID to add fault tolerance to the shared disk system.
If you are using iSCSI for shared disk system access, ensure you have configured iSCSI
intiators and targets prior to installing Novell Cluster Services. See
NetWare Servers from Linux Initiators (http://www.novell.com/documentation/iscsi1_nak/
iscsi/data/bswmaoa.html#bt8cyhf)
Creates a new Cluster object and Cluster Node object in eDirectory.
Installs Novell Cluster Services software on the server.
Creates a special cluster partition if you have a shared disk system.
Creates a new Cluster Node object in eDirectory.
Installs Novell Cluster Services software on the server.
for more information.
Accessing iSCSI Targets on
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