Bosch Appliances Computer Hardware DVA-08K User Manual

en | Subsystem Maintenance

RAID Subsystem DVA-08K | Installation Manual

F.01U.027.797 | V2 | 2008.08

Bosch Security Systems

Constant monitoring and maintenance of your SATA-based subsystems will minimize the 

chance of system downtime and preserve the working integrity of the system for a longer 

period of time. If any of the subsystem plug-in modules fails, they must be replaced as soon as 

possible.

All of the following components can be replaced in case of failure:

1.

Controller module – Section 6.2 Replacing Controller Module Components

2.

Memory module – Section 6.3 Replacing or Upgrading Memory Modules

3.

4.

PSU modules – Section 6.5 Replacing a Failed PSU Module

5.

Cooling fan modules – Section 6.6 Replacing a Failed Cooling Fan Module

6.

Hard drives – Section 6.7.2 Replacing a Failed Hard Drive

•

With the exception of the RAID controller module, all the components on the subsystems, 

including the PSU modules, cooling fan modules, BBU, and drive trays are hot-swappable 

and can be changed while the subsystem is still in operation.

•

Qualified technicians who are familiar with the subsystem should be the only ones who 

make component replacements. If you are not familiar with the subsystems and not famil-

iar with RAID subsystem maintenance in general, it is strongly advised that you refer sub-

system maintenance to a suitably qualified maintenance technician. 

•

Normalized airflow is directly dependent upon the presence of all subsystem compo-

nents. Even if a subsystem component fails, it should not be removed from the subsys-

tem until a replacement is readily at hand and can be quickly installed. Removing a 

subsystem component without a replacement can lead to permanent subsystem damage.

•

When replacing any hot-swappable component, caution should be taken to ensure that 

the components are handled in an appropriate manner. Rough or improper handling 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 contains very sensitive components and can be easily damaged.

Do not remove a failed component from the subsystem until you have a replacement on hand. 

If you remove a failed component without replacing it, the internal airflow will be disrupted 

and the system will overheat causing damage to the subsystem.

When inserting a removable module, DO NOT USE EXCESSIVE FORCE! Forcing or slamming a 

module can damage the pins on the module connectors either on the module itself or on the 

backplane. Gently push the module until it reaches the end of module slot. Feel the contact 

resistance and use slightly more force to ensure the module connectors are correctly mated. If 

the module comes with extraction levers or retention screws, use them to secure the module.