The following hardware requirements for installing Novell Cluster Services represent the minimum hardware configuration. Additional hardware might be necessary depending on how you intend to use Novell Cluster Services.
A minimum of two Linux servers, and not more than 32 servers in a cluster
At least 512 MB of additional memory on each server in the cluster
One non-shared device on each server to be used for the operating system
At least one network card per server in the same IP subnet
In addition, each server must meet the requirements for Novell Open Enterprise Server 2 Linux. For information, see OES 2 SP3: Installation Guide.
NOTE:Although identical hardware for each cluster server is not required, having servers with the same or similar processors and memory can reduce differences in performance between cluster nodes and make it easier to manage your cluster. There are fewer variables to consider when designing your cluster and failover rules if each cluster node has the same processor and amount of memory.
If you have a Fibre Channel SAN, the host bus adapters (HBAs) for each cluster node should be identical and be configured the same way on each node.