Bosch DVA-12T Installation Manual download pdf (Page 31)

RAID Subsystem DVA-12T | Installation Manual Subsystem Connection and Operation | en 31

Bosch Security Systems F.01U.027.798 | V1 | 2006.06

5.3.4 Power On Status Check

Once the subsystem has been powered on, the status of the entire subsystem should be

checked to ensure that everything is running smoothly and that there are no complications or

malfunctions.

• Controller Module LEDs – The controller ready, Host Ports Active, and Device Ports

Active LEDs should all flash green.

• Drive Tray LEDs – The green LED for all the drive trays (that contain hard drives) should

light up, showing that there is power.

• Firmware and RAIDWatch – The overall status of the system may be checked using the

embedded firmware utility or the RAIDWatch GUI screen.

• Audible Alarm - If any errors occur during the initialization process, the onboard alarm will

sound in a hastily repeated manner.

Drive tray LEDs should normally start flashing right after power-on, indicating the RAID control

units are attempting to access the hard drives.

5.4 Power Off Procedure

To power down the RAID subsystem, please follow these steps:

1. Stop I/O access to the system.

Stop all I/O accesses to the RAID subsystem. Please refer to the related documentation

of your applications.

2. Flush the cache.

Locate the Cache_Dirty LED on the back of controller module to check if there is still

cached data in memory. Use the Shutdown Controller function to flush all cached data.

This prepares the RAID subsystem to be safely powered down.

3. Turn off the power.

Turn off the power switches at the top of the rear panel of the RAID subsystem. Once the

RAID subsystem has been powered down, other devices connected to the subsystem may

be powered down.

NOTICE!

Although the PSUs are redundant and a single PSU can provide sufficient power to the sys-

tem, it is advisable to turn both of the power switches on. If only one PSU is operating and

fails, system operation will be terminated.

NOTICE!

The subsystem has been designed to run continuously. Even if a component failure occurs the

fault can be corrected online.

NOTICE!

When powering down the RAID subsystem, please ensure that no time-consuming processes,

like a “Logical Drive Parity Regeneration” or a “Media Scan,” are taking place.

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Bosch DVA-12T Installation Manual Page 31