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 device, whether in the cluster or not, have access to all of the volumes on the shared storage space unless you specifically prevent such access. Novell Cluster Services arbitrates access to shared volumes for all cluster nodes, but cannot protect shared volumes from being corrupted by noncluster servers.
When working with shared storage, do not attach a noncluster server to the same shared storage device as a cluster unless you have isolated the storage so that the noncluster server has access only to its own volumes. Failure to do so will result in data corruption or volume loss.