Owner's Manual

20 Deployment Guide
Figure 1-5. Cabling the Server Direct-attached to a CX3-20 Storage System Using two Single Port FC HBAs.
Cabling the Cluster Servers
Each cluster node attaches to the storage system using two fiber optic cables with duplex local connector
(LC) multimode connectors that attach to the HBA ports in the cluster nodes and the storage processor
(SP) ports in the Dell|EMC storage system. These connectors consist of two individual fiber optic
connectors with indexed tabs that must be aligned properly into the HBA ports and SP ports.
NOTICE: Do not remove the connector covers until you are ready to insert the connectors into the HBA port, SP
port, or tape library port.
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.
To cable the cluster:
1
Connect cluster node 1 to the storage system.
a Install a cable from cluster node 1 HBA port 0 to SP-A port FE 0.
b Install a cable from cluster node 1 HBA port 1 to SP-B port FE 0.
2 Connect cluster node 2 to the storage system.
a Install a cable from cluster node 2 HBA port 0 to SP-A port FE 1.
b Install a cable from cluster node 2 HBA port 1 to SP-B port FE 1.
Figure 1-5 and Figure 1-6 illustrate methods of cabling a two-node direct-attached cluster to a CX3-20
and CX3-40 storage system, respectively.