Novell BUSINESS CONTINUITY CLUSTERING 1.0 - ADMINISTRATION Manual page 15

The first option is typically used when the purpose of the secondary site is primarily testing by the
IT department. The second option is typically used in a company that has more than one large site of
operations.
Two Site Business Continuity Cluster
Figure 1-3
Building A
Ethernet Switch
Server Server Server
1A 2A 3A
Fibre Channel
Switch
Fibre Channel
Disk Arrays
Cluster Site 1
Multiple-Site Business Continuity Cluster Solution
This is a large Business Continuity Cluster solution capable of supporting up to 32 nodes per site
and more than two sites. Services and applications can do fan-out failover between sites. Replication
of data blocks is typically done by SAN vendors, but can be done by host-based mirroring for
Two independent clusters at
geographically separate sites
WAN
eDirectory
DirXML
Server
4A
SAN
Disk blocks
Building B
Ethernet Switch
Server Server Server
1B 2B 3B
Fibre Channel
Switch
Fibre Channel
Disk Arrays
Cluster Site 2
Server
4B
Overview 15