HP Surestore 64 FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availabil - Page 76
Server Consolidation, Server consolidation
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Planning Considerations for Fibre Channel Topologies Server Consolidation Providing fabric connectivity for multiple low-bandwidth servers (Windows NT or UNIX-based) by attaching them individually to an expensive Fibre Channel director is not a cost-effective solution. A practical solution is to consolidate the servers on an inexpensive loop switch, then connect the switch to a single director or edge switch E_Port. Figure 33 illustrates the consolidation of ten servers (using two unmanaged hubs) through one B_Port connection to a director. Each server has a 10-MBps bandwidth, therefore the sum of the bandwidths of all consolidated servers equals the B_Port bandwidth of 1.0625 Gbps. Connecting another server to the switch would exceed the B_Port capability and adversely impact director-to-switch link performance. Other devices (such as tape drives) should not be connected to a switch used for server consolidation. Figure 33: Server consolidation 76 SAN High Availability Planning Guide