Dell AX4-5 - Manual (Page 26)

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Cabling Your Cluster Hardware
• MSCS is limited to 22 drive letters. Because drive letters A through D are
reserved for local disks, a maximum of 22 drive letters (E to Z) can be used
for your storage system disks.
• Windows Server 2003 and 2008 support mount points, allowing greater
than 22 drives per cluster.
For more information, see "Assigning Drive Letters and Mount Points"
section of Dell Failover Clusters with Microsoft Windows Server 2003
Installation and Troubleshooting Guide or Dell Failover Clusters with
Microsoft Windows Server 2008 Installation and Troubleshooting Guide on
the Dell Support website at support.dell.com.
Figure 2-9 provides an example of cabling the cluster nodes to four
Dell|EMC storage systems.
Figure 2-9. PowerEdge Cluster Nodes Cabled to Four Storage Systems
Connecting a PowerEdge Cluster to a Tape Library
To provide additional backup for your cluster, you can add tape backup
devices to your cluster configuration. The Dell PowerVault™ tape libraries
may contain an integrated Fibre Channel bridge, or Storage Network
Controller (SNC), that connects directly to your Dell|EMC Fibre Channel
switch.
private network
cluster node
Fibre Channel
switch
storage systems (4)
Fibre Channel
switch
cluster node