Bosch DVA-12T Installation Manual download pdf (Page 34)

34 en | Subsystem Maintenance and Upgrading RAID Subsystem DVA-12T | Installation Manual

F.01U.027.798 | V1 | 2006.06 Bosch Security Systems

6.2.3 Replacing the Controller Module

If the controller module has failed, it must be replaced. To replace a failed controller module:

1. Remove the failed controller module. (See Section 6.2.2 Removing the Controller Module)

If the DIMM module is undamaged it can be removed (See Section 6.3 DIMM Module

Replacement) and reused on the new controller module.

2. Install a DIMM module on the new controller module. (See Section 6.3 DIMM Module

Replacement)

3. Insert the controller module. Align the controller module with the controller module bay

at the rear of the subsystem. Gently slide the controller module in.

4. Fasten the hand screws. Once fully inserted secure the controller module to the sub-

system by fastening the hand screws.

5. Re-attach all the cables that were removed. These include the cables that connect to the

network or iSCSI initiators that were previously attached to the iSCSI ports, and any

cable that was attached to the RS-232C audio jack connector.

6. Power up the system.

6.3 DIMM Module Replacement

The subsystem comes with a pre-installed 1 GB (or above) DDR RAM DIMM module on the

controller. If DDR RAM DIMM modules with a different size need to be used or the original

memory module is damaged in some way, the pre-installed modules must be removed and the

new ones installed. Replacement and installation instructions are described fully below.

The DIMM module is located on the controller board. The controller board is a sensitive com-

ponent and must be treated with care to avoid being damaged.

6.3.1 DIMM Module Considerations

If the memory module on the subsystem controller module is going to be replaced, the follow-

ing factors must be considered when purchasing replacement DIMM modules:

• Pre-installed DIMM module: The RAID comes with a 1 GB DDR RAM DIMM module pre-

installed on the controller board. If you wish to change the size of the DIMM, then a new,

separately purchased DIMM must be installed.

• Purchasing considerations: When purchasing a DDR RAM DIMM to install on the

controller board, contact your vendor for an updated list of certified modules.

• DDR RAM DIMM modules supported: The RAID subsystem supports DDR RAM DIMM

modules with memory capacities from 1 GB.

• Installation considerations: When installing the DIMM module, it is necessary to

handle the controller module. The controller board is more susceptible to damage than

the other components and must therefore be handled with extreme care. ALL anti-static

precautions specified in Section 3.3 Safety Precautions must be strictly adhered to.

• Secure installation: When replacing the DIMM module, make sure that the new

DIMM module is firmly in place prior to installing the controller module. If the DIMM mod-

ule is not firmly in place, the subsystem will not run and the controller will need to be

removed and the DIMM module correctly installed.

CAUTION!

• The pre-installed modules must be removed prior to installing new memory modules. Do

this with care. Sensitive components can be damaged during the process.

• The controller board in the controller module is a sensitive item. Please ensure that all

anti-static precautions stipulated above are strictly adhered to. Only qualified techniciens

should replace the DIMM module.

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