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:
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 Accessing iSCSI Targets on NetWare Servers from Linux Initiators for more information.