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Platform Guide 5
Fibre Channel Switches
• Dual (redundant) fabric configurations are required.
• A maximum of 16 switches may be used in a SAN.
• A minimum of two and a maximum of eight Inter-Switch Links (ISLs) may exist between any
two directly communicating switches. A single ISL is permitted only when connecting to a
remote switch in an EMC
®
MirrorView™ configuration.
• A maximum of three hops (the number of ISLs each data frame must traverse) may exist
between a host and a storage system.
Rules and Guidelines
When configuring your cluster, all cluster nodes must contain identical versions of the following:
Table 1-2. Supported HBAs for Cluster FE400 Configurations
PowerEdge
System
Emulex LP982
or LP9802 (PCI-X)
HBA
QLogic QLA2340
(PCI-X) HBA
Emulex LP1050-EX
(PCIe Express [PCIe])
HBA
1550 X X
1650 X X
1750 X X
1800 X X X
1850 X* X* X**
2500 X X
2550 X
2600/2650 X X
2800 X X X
2850 X* X* X**
4400 X X
4600 X X
6400/6450 X X
6600/6650 X X
8450 X X
* The PowerEdge system must have a PCI-X riser installed in order to use this HBA.
** The PowerEdge system must have a PCIe riser installed in order to use this HBA.