Compaq StorageWorks TM RAID Array 3000 Pedestal Storage Subsystem Hardware User's Manual page 18

1-2 RAID Array 3000 Pedestal Storage Subsystem Hardware User's Guide
The RAID Array 3000 offering also includes option kits designed to increase
the storage capacity and enhance the performance of the subsystem. The first
is an expansion pedestal (second enclosure) designed to increase the storage
capacity of the subsystem to a maximum of 14 drives. The pedestal expansion
kit option is described in detailed in Chapter 4 "Expansion Pedestal Option" of
this guide.
The second option kit allows the addition of a second RAID controller to the
subsystem for redundancy. The second controller operates in conjunction with
the installed controller to protect data during a malfunction. Chapter 5 "Second
Controller Option" describes how to install the redundant controller option and
how to reconfigure the subsystem to accommodate it.
The RAID Array 3000 pedestal enclosure and its associated options are listed
and described in Table 1–1. Figure 1–1 shows the pedestal with a full
complement of drives (optional) for completeness.
PEDESTAL
UPS
3000-01A
Figure 1-1. RAID Array 3000 pedestal enclosure (drives optional)