Bosch Appliances DVA-08K manual 5.4.1, Power On Checklist, 5.4.2, Power On Sequence, 5.4.3

38 en Subsystem Connection and OperationRAID Subsystem DVA-08K Installation Manual

5.4	Power On
	After installing all the components in the subsystem, connecting the host channels to the
	host, and connecting the expansion cables to the expansion enclosures, the subsystem is
	ready to be powered on.
5.4.1	Power On Checklist
	BEFORE powering on the subsystem, please check the following:
	•	Memory module: Memory module has been correctly installed on the controller board.
	•	BBU modules: Ensure that the BBU modules have been installed correctly.
	•	Hard drives: Hard drives have been correctly installed on the drive trays.
	•	Drive trays: ALL the drive trays, whether or not they have a hard drive, have been installed
	•	into the subsystem.
		Cable connections: The host ports on the subsystem have been correctly connected to
	•	host computer(s).
		Power cables: The power cords have been connected to the PSU modules on the subsys-
	•	tem and plugged into main power.
		Ambient temperature: All the subsystem components have been acclimated to the sur-
		rounding temperature.
5.4.2	Power On Sequence
	When powering on the subsystem, please follow the steps below:
	1.	Power on any expansion enclosures if applied
		If you connect any expansion enclosures to the subsystem, power on those expansion
		enclosures before powering on the subsystem.
	2.	Power on the subsystem
		The subsystem should be powered on before the host computers. The power on proce-
		dure for the subsystem is described in Section 5.4.3 Power On Procedure.
	3.	Host computers
		Host computers should be the last devices that are turned on. Please refer to the docu-
		mentation that came with your host computers to see its own power on procedure.
5.4.3	Power On Procedure
	1.	Plug in all power cords to the power connectors located at the rear of the subsystem. Use
		the power cables that came with the subsystem to connect the subsystem to the power
		outlet, separate power sources, or UPS devices.
	2.	Turn on the power supply switches for both power supply units.
	3.	The subsystem is now turned on and the self-test will start automatically.
	4.	The “Power” LED on the front LCD panel will turn blue.

CAUTION!

Although the PSUs are redundant and a single PSU can provide sufficient power to the sys- tem, it is advisable to turn both the power switches on. If only one PSU is operating and fails, the whole system will shut down.

F.01U.027.797 V2 2008.08 Bosch Security Systems