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support.dell.com Dell PowerEdge Cluster F-Series SAN Guide 1-5
SAN-Attached Clusters
SAN-attached clusters are cluster configurations in which you cable redundant Fibre
Channel HBAs to a redundant Fibre Channel switch fabric. You make the connection
to the storage system through the switch fabric. SAN-attached configurations can
share certain resources with other servers, storage systems, and backup systems on
the SAN.
Figure 1-4 shows how a SAN-attached PowerEdge Cluster F-Series configuration uses
three networking segments: public network, private network, and SAN. Each seg-
ment may vary in components and complexity.
Figure 1-4. How a SAN-Attached PowerEdge Cluster Uses Network-
ing Segments
•
Public network — A public network connects cluster nodes to the client network.
This network consists of devices such as Ethernet NICs installed in the cluster
nodes.
•
Private network (node-to-node cluster interconnect) — A dedicated network that
connects the servers to each other. The primary function of the private network
in a cluster configuration is to pass heartbeat information that allows each cluster
node to monitor the health of the other cluster node.
PowerEdge
server
Public LAN
public
network
private network
(cluster interconnect)
PowerVault Fibre Channel switch
Fibre Channel bridge
PowerVault 130T PowerVault
storage system
storage area network
PowerVault Fibre
Channel switch
PowerEdge
server