Chassis – Grass Valley K2 Level 3 RAID Dec.09 2005 User Manual
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Level 3 RAID Instruction Manual
November 23, 2005
Chapter 1 About the K2 Level 3 RAID storage
NOTE: Every Level 3 RAID chassis power supply includes a backup battery so that
if electrical power is lost, data stored in cache memory will be saved. (Used for
nearline storage only.)
Chassis
The chassis is a sheet-metal housing that contains a passive midplane and chassis slots
for the RAID controllers or expansion adapters, disk drives, power supplies, and the
LAN card.
A RAID chassis (which houses one or two RAID controllers) has a pre-set chassis
address of 0. An expansion chassis (which houses one or two expansion adapters)
must have its chassis address manually configured. This address is set by a control on
the expansion adapter. Refer to your K2 Storage System Instruction Manual for
information on setting the chassis address switch. See also,
The following diagram shows how disk modules are identified based on the chassis
address and physical location. The chassis with an address set to 0 contains drives
from 00 to 0E; the expansion chassis with an address set to 1 contains drives from 10
to 1E.
Controller 0
Chassis
Controller 1
Power Supply 1
Power Supply 0