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support.dell.com Dell PowerEdge Cluster F-Series SAN Guide 1-15
l
Figure 1-8. Example of Cabling PowerEdge Cluster F-Series Nodes
to Four PowerVault 65xF DPEs and SAN Backup Using the PowerVault
Fibre Channel Bridge and Tape Library
Configuring Hard-Disk Drive Letters When Using Multiple
Shared Storage Units
Before installing MSCS, it is very important to make sure that both nodes have the
same view of the shared storage. Because each node has access to hard-disks that
are in a common storage array, each node must have the hard-disk drive letters
assigned identically. Perform the following steps to ensure that hard-disk drive letter
assignments are identical:
1. Ensure the proper order of your cables.
The
Windows NT Disk Administrator
or
Windows 2000 Disk Management
utility displays all disks that are accessible from the first QLogic HBA followed by
those that are accessible from the second QLogic HBA. Among the disks acces-
sible from one HBA, the disks attached to a port with a lower port number on the
Fibre Channel switch will be displayed first, followed by those attached to a port
with a higher port number.
To ensure proper drive letter assignments, ensure that the first QLogic HBA
detected by each node is connected to the same switch (the switch connected to
PowerVault storage processor A) and that the second QLogic HBA detected is
connected to the other switch (the switch connected to PowerVault storage
processor B).
cluster 2cluster 1
PowerVault Fibre
Channel switch
PowerVault
storage
system
for cluster 1
PowerVault
storage
system
for cluster 2
PowerVault
storage
system
for cluster 2
Fibre Channel
bridge
PowerVault
130T
PowerVault Fibre
Channel switch