IBM 8408-44E Site And Hardware Planning page 153

Figure 68. FC5904 or FC5908 adapter attached to disk expansion drawers
Note:
v The remaining two connectors on the adapter can be used to attach disk expansion drawers as shown
in Figure 63 on page 132.
Two SAS adapters to 5886 disk expansion drawer multi-initiator high availability
(HA) RAID configuration
Figure 69 on page 138, Figure 70 on page 139, Figure 71 on page 140, and Figure 72 on page 141 illustrate
connecting two SAS adapters to one, two, or four disk expansion drawers in a RAID configuration. It is
also possible to connect three disk expansion drawers by omitting one of the cascaded drawers that are
shown in Figure 71 on page 140. Disk expansion drawers can be cascaded only one level deep.
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Site and hardware planning