Cabling The Storage Systems; Direct-Attached Cluster - Dell PowerEdge Use Manual

Cabling the Storage Systems

This section provides information for connecting your cluster to a storage
system in a direct-attached configuration, or to one or more storage systems
in a network-attached configuration.
NOTE:
The cluster nodes represent the individual server modules in the
PowerEdge server enclosure. The designations namely, node 1 and node 2 and the
server enclosure are used for illustrative purposes only. The system and the storage
components in your cluster configuration may vary.

Direct-Attached Cluster

In a direct-attached cluster configuration, the redundant
Fibre Channel/iSCSI HBA ports are connected to a supported storage system
using pass-through modules. Two cluster nodes in a direct-attached
configuration can be configured within one PowerEdge server enclosure or
configured between two PowerEdge server enclosures. Direct-attached
configurations are self-contained and do not share any physical resources with
other server or storage systems outside of the cluster.
Each server module is labeled with an identification (ID) number located
above each module on the front of the PowerEdge server enclosure that
corresponds with the identical port number on the pass-through module. For
example, server module 4 connects to port 4 on the pass-through module.
To connect your server modules to a storage system in a direct-attached
configuration:
1 Identify the server modules that you wish to configure in a direct-attached
configuration.
2 Locate the identification number for each server module you selected in
step 1.
3 Match the server module identification numbers with the corresponding
port numbers on the pass-through module.
4 Connect cables from the selected ports to the appropriate SPs in the
supported storage system.
NOTE:
Figure 2-2 illustrates a PowerEdge 1855/1955 server enclosure configured
with a Dell|EMC CX3-10c storage enclosure. You can use a similar configuration
model for other supported server modules, server enclosures, and storage arrays.
Cabling Your Blade Cluster Hardware
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