HP StorageWorks Scalable File Share System Installation and Upgrade Guide Version 2.2

Object Storage Server storage topology 1–11
A configuration with less redundancy can be configured using one plane of Fibre Channel connectivity. This
configuration consists of the following components:
• One EVA4000 pair.
• One 4GB Fibre Channel switch.
• One Fibre Channel connection from each controller to the switch (two connections in total).
• Dual-port HBAs on each of two servers, one port connected to each switch.
• A Fibre Channel HBA on each of two servers, one port not connected.
• EVA4000 storage presented to each of two servers on each of two controllers (preferred to one).
With the exception of Fibre Channel switch failure, such a configuration tolerates the failures that are
tolerated by the two-switch configuration. As in the two-switch configuration, if Server 1 fails, Server 2 can
access the storage on EVA4000 1, while if Server 2 fails, Server 1 can access the storage on EVA4000 2.
Figure 1-8 shows an overview of storage connections where one Fibre Channel switch is used.
Figure 1-8 Configuration using one Fibre Channel switch
For information on configuring the storage on EVA4000 arrays, see Chapter 5.
Server 1 Server 2
P1 P2 P1 P2
SWITCH 1
C1
C2
C1
C2
EVA4000 1
EVA4000 2
Legend
P1, P2: Ports on one dual fibre channel HBA
C1, C2: Pair of controllers on EVA4000
Failover
Failover
Normal
Access
Normal
Access