Grass Valley K2 Storage System Instruction Manual v.3.1 - Manual (Page 283)

September 6, 2006 K2 Storage System Instruction Manual 283
Configuring RAID
Nearline systems store metadata files and journal files on the primary RAID
chassis, which requires a RAID 1 LUN (two disks) for metadata storage and a
RAID 1 LUN (two disks) for journal storage. On a Nearline system, these disks
must be Fibre Channel disks. The RAID 1 LUNs must be bound from the first four
disks (counting from left to right as you face the front of the RAID chassis) in the
primary RAID chassis. These disks must be 15K rpm drives. In addition, the fifth
disk in the primary RAID chassis (also a 15K drive) is bound as a Hot Spare. This
fifth 15K disk then provides Hot Spare functionality for the other four 15K disks
(the RAID 1 LUNs) only. Refer to
“Binding Hot Spare drives” on page 369 for
more information.
View disk properties and identify the four disks you will use for the RAID 1 LUNs,
the one 15K Hot Spare disk, and the remainder of the disks that are available for
media storage LUNs. Make sure you select disks appropriately as you bind LUNs
in the remainder of this procedure.
2. For systems that use RAID 1 LUNs, you must now create the separate RAID 1
storage for metadata files and journal files. To bind unbound disks for metadata and
journal storage, do the following:
a. Right-click the Unbound node for the controller, then select Bind LUNs in the
context menu. (If the RAID chassis has two controllers, both controllers are
represented by the single “Controller” node)
The Bind LUN dialog box opens showing all unbound disks for the controller
listed in the Available Disk list.