Chapter 3. Replacing Controller Unit Components; Raid Controller; Servicing Notes; Figure 15. Controller Indicator Lights - IBM Netfinity FASt T500 User Reference

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Chapter 3. Replacing controller unit components

The controller unit consists of two RAID controllers, a cooling system, mini-hubs, GBICs,

and a power system. This chapter includes detailed instructions on replacing these

components.

The controller unit supports redundant array of independent disks (RAID) technology. The

controller unit contains two RAID controllers.

Each controller comes in a removable, portable unit, called a controller CRU, as shown in

Figure 16 on page

front of the controller unit and attach to hosts through Fibre Channel connections. Two

handles lock the controller in place. Each controller slot has a controller slot designation

that identifies the physical location of the controller in the chassis: controller slot A (top)

or controller slot B (bottom). Each controller CRU has ten indicator lights: one power, one

fault, and eight status indicator lights, as shown in the following figure.

Consider the following when servicing the controllers in the controller unit:

• The controller unit supports two controller CRUs, which attach to hosts through Fibre

Channel connections.

31. The controller CRUs slide into one of two controller slots on the

Status lights

Fault

Power

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