NEC R320A-E4, R320B-M4 manual Power Unit

CPU/IO module#0

PCI-Ex slot

Express5800/R320a-E4, R320b-M4(Windows2008 R2 model)

SAS controller

[N8803-037]

				Device Expansion Unit
					Power Unit
				[N8141-41]
				Internal SAS cable	[N8181-54F]
	SAS cable			[K410-163(00)]
2m [K410-168(02)]
		N8151-101	Built-in LTO(LTO2)
		N8151-102	Built-in LTO(LTO3)
		N8151-90	Built-in LTO(800GB)
		N8151-77	Built-in LTO(800GB)

Double backup configuration

Device Expansion Unit [N8141-41F]

			SAS cable
			K410-168(02)
CPU/IO			CPU/IO
module #0			module #1
		SAS	FT server
	controller

[Notes for double backup]

(1) Backup job

There are the following notes for double backup configuration.

Configure 2 sets of SAS controller/SAS cable/Backup device. Two backup devices are recognized separately by OS.

When automatically backup by a job, make a job for each backup device so that each device can backup. In case one device fails, the other backup device can backup.

(2) Note for BrightStor ARCserve backup

When making a job, backup is not performed if you put [*] in the [group] of destination tab.

Be sure to configure two backup jobs with setting the device group at the group on the destination tab and the media definition as “*” or the name of the media.

Single backup configuration

Device Expansion Unit [N8141-41F]

SAS cable

K410-168(02)

[Notes for single backup]

Configure 1 set of SAS controller/SAS cable/Backup device. In case a CPU/IO module or backup device fails, backup is not possible until the failed part is repaired or replaced.

When two servers share a Device Expansion Unit [N8141-41F]

CPU/IO	CPU/IO
module #0	module #1

SAS	R320a-E4,R320b-M4	R320a-E4,R320b-M4
	FT server
controller

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