Chapter 5: Subsystem Maintenance
Controller Module Maintenance
5-3
♦
When replacing any hot-swappable component, caution should be taken to ensure
that the components are handled in an appropriate manner. The manhandling of
components can lead to irreparable damage.
♦
When removing a controller module from the subsystem, ensure that the power has
been turned off and that all precautionary measures, without exception, are adhered
to. The controller board and the IO board on which it is mounted very sensitive
components and can be easily damaged.
5.3. Controller Module Maintenance
5.3.1 Overview
The controller module consists of the components shown in
Table 5-1
:
Component
User Serviceable (Y/N)
Maintenance Procedures
DIMM Module
Yes
The DIMM module must be
replaced when either a DIMM
module with a larger capacity is
required or the DIMM module fails.
BBU Module with
BBU charger board
(Optional)
Yes
The BBU can be installed after the
initial installation procedure or
replaced if a previously installed
BBU module is damaged and fails.
IO Board
No
N/A
Controller Board
No
N/A
Table 5-1: Controller Module Components
5.3.2 Notes on Controller Module Maintenance
♦
The controller module contains a DIMM module and may contain an optional
BBU. When replacing the controller module, if these components are undamaged
they must be removed from the old controller module and reinstalled onto the new
controller module.
♦
When replacing the controller module, it should be remembered at all times that the
controller board is one of the most sensitive components in the ES subsystem. All
previously stipulated safety precautions (see
Chapter 2
) must be strictly adhered to.
Failure to adhere to these precautions can result in permanent damage to the
controller board, resulting in timely delays for the end user. The same rule applies
for the IO board that is mounted on the base of controller module chassis.
