Compaq RAID ARRAY 3000 EK-SMCPO-UG. C01 - Manual (Page 97)

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Writer: Bob Young Project: RAID Array 3000 Pedestal Storage Subsystem Hardware User’s Guide Comments:
Part Number: EK-SMCPO-UG. C01 File Name: f-ch5 Second Controller Option.doc Last Saved On: 12/4/00 1:48 PM
Chapter
5
Second Controller Option
This chapter describes how to install a second RAID controller in the RAID
Array 3000 pedestal. The second controller option adds a fail/safe feature to
your storage subsystem. The chapter also contains a procedure describing how
to configure the subsystem for dual-controller operation when only one serial
port is available on the host.
The controller option adds a second (redundant) controller unit to your
subsystem to preserve the integrity of data should the first controller
malfunction. The second controller is installed directly below the existing
controller in the bottom controller slot of the RAID Array 3000 pedestal
(see Figure 5-1).
The installation procedure consists of adding two Single Inline Memory
Modules (SIMM) to the redundant controller and, depending on the option kit
you are installing (see “Second controller option kit in this chapter), one or
two SIMM modules to the existing controller. Following the memory upgrade,
you must upgrade the firmware in both controllers, seat the devices in their
respective controller slots, and configure the subsystem to accommodate a
redundant controller.