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RAID Subsystem DVA-12T | Installation Manual
Subsystem Maintenance and Upgrading | en 33
Bosch Security Systems
F.01U.027.798 | V1 | 2006.06
6.2
Replacing Controller Module Components
The controller module consists of the components shown below:
•
DIMM Module
The DIMM module can be replaced when the DIMM module fails or if a larger capacity
DIMM module is required.
•
Controller Module
If the controller module in a single controller model fails, it is necessary to power the sys-
tem down and replace the controller.
6.2.1
Controller Module Maintenance Overview
•
The controller module contains a DIMM module. When replacing the controller
module, these components can be removed and used on the new controller module if
they are undamaged.
•
When replacing the controller module, you must remember that the controller board
is one of the most sensitive components in the RAID subsystem. All previously stipulated
safety precautions (see Section 3 Hardware Installation) must be strictly adhered to. Fail-
ure to adhere to these precautions can result in permanent damage to the controller
board.
•
For your own safety and that of the subsystem, make sure that no power is being
supplied to the system prior to replacing the controller module.
6.2.2
Removing the Controller Module
To remove the controller module:
1.
Turn off the subsystem. If possible power off the subsystem in the way described in
Section 5 Subsystem Connection and Operation. If it is not possible to do this turn off both
PSU modules and disconnect the power cords.
2.
Disconnect all cables that are connected to the controller module you wish to replace.
These include the Ethernet cables connected to the network, and any cable connected to
the RS-232C audio jack connector.
3.
Loosen the retention hand screws. Hand screws are located on both sides of the RAID
controller faceplate. Press these screws and loosen them so that the controller can be
removed from chassis.
Fig. 6.1
Loosening the Hand Screws from the Controller Module
4.
Remove the controller module. Gently pull the controller module out of the subsystem.