Cabling Your Cluster Hardware
27
3
In the second cluster, connect cluster node 1 to the storage system:
a
Install a cable from cluster node 1 HBA port 0 to SP-A
Fibre port 2
(third Fibre Channel port
).
b
Install a cable from cluster node 1 HBA port 1 to SP-B
Fibre port 2
(third Fibre Channel port
).
4
In the second cluster, connect cluster node 2 to the storage system:
a
Install a cable from cluster node 2 HBA port 0 to SP-A
Fibre port 3
(fourth Fibre Channel port
).
b
Install a cable from cluster node 2 HBA port 1 to SP-B
Fibre port 3
(fourth Fibre Channel port
).
Cabling Storage for Your SAN-Attached Cluster
A SAN-attached cluster is a cluster configuration where all cluster nodes that
are attached to a single storage system or to multiple storage systems through
SAN use a redundant switch fabric.
SAN-attached cluster configurations provide more flexibility, expandability,
and performance than direct-attached configurations.
See "Implementing Zoning on a Fibre Channel Switched Fabric" on page 42
for more information on Fibre Channel switch fabrics.
Figure 2-8 shows an example of a two node SAN-attached cluster.
Figure 2-9 shows an example of an eight-node SAN-attached cluster.
Similar cabling concepts can be applied to clusters that contain a different
number of nodes.
NOTE:
The connections listed in this section are representative of one proven
method of ensuring redundancy in the connections between the cluster nodes and
the storage system. Other methods that achieve the same type of redundant
connectivity may be acceptable.