Bosch Appliances DVA-08K manual 2.3.2Drive Trays, 2.3.3, The RAID Controller Module

RAID Subsystem DVA-08K Installation ManualIntroduction en 13

2.3.2Drive 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

•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.

Bosch Security Systems F.01U.027.797 V2 2008.08