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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