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12
en | Introduction
2.3.2
Drive Trays
The subsystem comes with 8 drive trays (see Figure 2.9) designed to accommodate separately
purchased standard 1-inch pitch, 3.5-inch disk drives. The drive bays are accessed from the
enclosure front. Two LED's on the front of the tray are used to indicate the drive status. A key-
lock on each drive tray secures the hard drive in place, while an easily accessible release but-
ton ensures fast and efficient drive hot-swapping.
Fig. 2.9 Drive Tray Front View
CAUTION!
Be careful not to warp, twist, or contort the drive tray in any way (e.g., by dropping it or rest-
ing heavy objects on it). The drive tray has been customized to fit into the drive bays in the
subsystem. If the drive bay superstructure is deformed or altered, the drive trays may not fit
into the drive bay.
2.3.3
The RAID Controller Module
The RAID controller module contains a main circuit board, a preinstalled 256MB capacity or
above DDR RAM DIMM module, and the necessary support interfaces. The controller module
contains no user-serviceable components. Except when replacing a faulty unit or installing/
upgrading the cache memory inside, the controller module should never be removed or
opened.
CAUTION!
Although the RAID controller can be removed, the only time you should touch the controller
itself is to replace the memory module or to install the memory module. The RAID controller is
built of sensitive components and unnecessary tampering can damage the controller.
Controller Module Interfaces
The subsystems provide external interfaces to host computers and management station(s)
through the RAID controller's rear-side faceplate as shown in Figure 2.10.
Fig. 2.10 Controller Module Faceplate
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F.01U.027.797 | V1 | 2006.05
Host Ports
SCSI-320 Host Ports: Two SCSI-320 host channels connect the subsystem to the host
computers equipped with SCSI-320 compatible adapters through the dual-stack VHDCI
connectors. The dual-stack connectors facilitate cascade connections for configurations
such as host clustering or cascading with another RAID subsystem.
RAID Subsystem DVA-08K | Installation Manual
Bosch Security Systems
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