Chapter 1: Introduction
Chassis Overview
1-3
Drive bays with drive tray canisters:
The front section of the
chassis houses sixteen (16) drive bays.
LCD keypad panel and handles:
The forearm handles on the
sides of the subsystem provide an easier means for installing or
retrieving the chassis into and out of a rack or cabinet. The left-
side handle comes with a 2 rows x 16 characters-wide LCD keypad
panel that can be used to access a firmware-embedded
configuration and monitoring utility. (Please refer to
Section 1.3.1
)
1.2.2 Rear Panel Overview
The rear view of the subsystem is shown below. The rear panel provides
access to all components located in the rear section of the chassis.
Figure 1-3: GHDX2-1430R-16F4D Subsystem Rear View
•
RAID controller modules:
Each controller module contains a main
circuit board and a pre-installed DDR RAM DIMM module. (See
Section 1.3.3.
)
About the dual-redundant RAID controllers in GHDX2-
1430R-16F4D:
For the RAID subsystem featuring redundant RAID controllers, the
upper controller module is identified as
Controller A,
while the lower
controller module is identified as
Controller B.
By factory default,
management tools such as the LCD keypad panel, hyper terminal and
RAIDWatch
®
manager recognize
Controller A
as the primary
controller and
Controller B
as the secondary controller.
If
Controller A
fails for any reason (hardware error, software error,
removal from system, etc.), then
Controller B
will take over and
become the primary/managing controller.
If the failed
Controller A
restarts and successfully returns to service, it
will temporarily become the secondary controller.