Dell PowerEdge - Expanding Virtual Disk Capacity

Introduction 17
Network-Attached Cluster
Network-attached clusters provide configuration flexibility, expandability, and
performance. In a network-attached cluster, all of the nodes (server modules)
are attached to redundant switch fabrics. A network-attached cluster supports
the following configurations:
• One or two storage systems using embedded switch fabrics
• Up to four storage systems using external fabrics
Figure 1-4 shows the network-attached cluster connected to an external SAN
using embedded switch modules.
Figure 1-5 shows the network-attached cluster connected to an external SAN
using embedded pass-through modules.
Figure 1-6 shows the network-attached cluster connected to an external SAN
using embedded switch modules
NOTE: Figure 1-4 through Figure 1-6 are for illustration only. Some cluster connections
shown below are routed internally through the PowerEdge server enclosure.
Figure 1-4. Network-Attached Cluster Connected to an External SAN Using Embedded
Switch Modules
cluster node
cluster node
private network
storage system
embedded
switch module
embedded
switch module
public network
book.book Page 17 Monday, December 31, 2007 3:41 PM