Bosch DVA-08K, Installation Manual

Page: 44 / 62

44 en | Subsystem Maintenance RAID Subsystem DVA-08K | Installation Manual
F.01U.027.797 | V1 | 2006.05 Bosch Security Systems
6.6.2 Replacing a Cooling Fan Module
The cooling fan modules are secured to the chassis with two black latches located on the rear
of the module. To replace the cooling fan module, please follow these steps:
1. To remove the cooling fan module: Squeeze both side latches towards the center of the
cooling fan module and gently withdraw the cooling fan module from the subsystem by
gently pulling on the silver handle at the bottom. (See Figure 6.6 ).
Fig. 6.6 Removing the Cooling Fan Module
2. Install the new cooling fan module: Line the new module up with the slot into which it
will be inserted and then gently push it into the chassis. The latches will hold the module
in place.
6.7 Drive Tray Maintenance
6.7.1 Notes on Hard Drive Maintenance
•
Hot-swappable drive trays: The drive trays are all hot-swappable. If a hard drive fails, it
can be replaced while the subsystem is still running.
•
Forearm handles: If the hard drive is behind either the left or right forearm handle, make
sure that the locking mechanism on the side of the handle is first released prior to open-
ing the handle itself. (See Figure 6.7 ) The locking mechanism must also be released in
order to close the handle. Therefore, after the new drive has been installed, it will be nec-
essary to release the locking mechanism on the handle prior to closing it.
Fig. 6.7 Forearm Handle Locking Mechanism
•
Front flap mechanism: Do not leave a drive tray’s front flap open. The front flap and its
key-lock secure a drive tray to chassis slot. A disk drive operating with the half-open front
bezel may result in signal glitches and Data Compare Errors might ensue.
•
Remove drives slowly: Although the drive trays are designed to be hot-swappable, when
removing a drive tray from the subsystem, withdraw it from the chassis slowly. Removing
the drive tray too quickly may cause a drive I/O timeout.
•
Replacement on hand: If a hard drive has failed, make sure you have a replacement hard
drive readily available before removing the failed drive from the subsystem. Do not leave
CAUTION!
Forcing or slamming a module into place can damage the connector pins on the module itself
or that on the subsystem backplane.