fiber-optic cables to connect one expansion unit to another in a daisy-chain. For
more information about adding expansion units, see “Connecting additional
expansion units” on page 35.
Fibre Channel loop configurations
You must determine how the host systems will connect to the storage server. You
can connect up to two host systems directly to the storage server, or you can
connect more than two hosts to the storage server through switches. The
illustrations in the following sections show common host system configurations.
Note:
The default is one partition. Four-partition and eight-partition configurations
are provided as option upgrades, as is the option of additional attachments
to expansion units (EXPs). Contact your IBM resellers or marketing
representatives for more information.
Redundant host and drive loops
This section provides examples of FAStT600 host Fibre Channel configurations,
including:
v
Redundant host and drive loop Fibre Channel configurations in Figure 19 on
page 23
v
Single SAN fabric zone configuration in Figure 20 on page 24
v
Dual SAN fabric zone configuration, with an additional FAStT600 storage server
and an EXP expansion unit attached in Figure 21 on page 24
v
Two clusters in Figure 22 on page 25
Note:
These configurations have host and drive path failover protection and are
recommended for high availability.
22
IBM TotalStorage FAStT600 Fibre Channel Storage Server: Installation and User’s Guide
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