Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Building an Extended Distance Cluster Using MC/ServiceGuard
Types of Data Link for Storage and Networking
Chapter 2 51
NOTE Increased distance often means increased cost and reduced speed of
connection. Not all combinations of links are supported in all cluster
types. For a current list of supported configurations and supported
distances, refer to the HP 9000 Servers Configuration Guide, available
through your HP representative. As new technologies become supported,
they will be described in that guide.