Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

Chapter
14
Administering
sites and remote mirrors
In a Remote Mirror configuration (also known as a campus cluster or stretch cluster) the
hosts and storage of a cluster that would usually be located in one place, are instead
divided between two or more sites. These sites are typically connected via a redundant
high-capacity network that provides access to storage and private link communication
between the cluster nodes. A typical two-site remote mirror configuration is illustrated in
Figure 14-1.
Figure 14-1 Example of a two-site remote mirror configuration
Fibre Channel
Hubs/Switches
Site A Site B
Metropolitan or
Wide Area
Network Link
(Fibre Channel or
DWDM)
Cluster Nodes
Disk
Enclosures
Cluster Nodes
Disk
Enclosures
Private Network