Cluster Services 1.6 for NetWare 6

System Requirements

Hardware Requirements

The following list specifies hardware requirements for installing Novell® Cluster Services™. These requirements represent the minimum hardware configuration. Additional hardware might be necessary depending on how you intend to use Novell Cluster Services.

• A minimum of two NetWare® servers
• At least 256 MB of memory on all servers in the cluster (512 MB recommended for failing multiple applications to the same server)
• At least one local disk device (not shared) for volume SYS: on each server

Software Requirements

You must have NetWare 6 running on each cluster server. Ensure the following requirements are met:

• All servers in the cluster configured with the IP protocol and on the same IP subnet
• An additional IP address for the cluster and each cluster resource and cluster-enabled volume
• All servers in the cluster in the same eDirectory™ tree

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:

• At least 15 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 15 MB.

The shared disk system is properly set up and functional according to the manufacturer's instructions. Prior to installation, verify that all the drives in your shared disk system are recognized by NetWare by running the LIST DEVICES command on each server you intend to add to your cluster. If any of the drives in the shared disk system do not show up in the list, consult your NetWare documentation or the shared disk system documentation for troubleshooting information.

The disks contained in the shared disk system are configured in a mirroring or RAID 5 configuration to add fault tolerance to the shared disk system.

WARNING: If the disks in the shared disk system are not configured to use mirroring or RAID 5, a single disk error can cause a volume failure. Novell Cluster Services software will not protect against such faults.