IBM Netfinity FASt T500, Справочник пользователя

Страница: 49 / 91

©
Copyright IBM Corp. 2000 29
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.
RAID Controller
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 31 . The controller CRUs slide into one of two controller slots on the
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.
Figure 15. Controller indicator lights
Servicing notes
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.
Status lights
Power
Fault