IBM DR550 manual Dual Node Configurations

IBM System Storage DR550 Version 3.0 ------ 17 March 2006 Page 43

Dual Node Configurations

Boot is used to indicate the primary connection. There is one Ethernet connection from both engine_1 and engine_2. Standby is provided as a backup connection in the event of a network failure to provide an alternate network path.

The diagrams below show the connections to be made from each engine (P5 520) to the customer’s pair of 10/100 or gigabit Ethernet switches.

For connecting to a gigabit Ethernet network, the boot (primary) connections are made from the first port of the 2 Port Gigabit Ethernet SX PCI-X adapters in engine_1 and engine_2 to the customer’s gigabit Ethernet switch (Switch1) .Switch 1 will carry network traffic in a normal situations. The standby (backup) connections are made from the second port of the 2 Port Gigabit Ethernet SX PCI-

XAdapter installed on engine_1 and engine_2 to the customer’s gigabit Ethernet switch (Switch2). Switch2 will carry the network traffic to the DR550 when there is a network failure associated with connections to Switch1. All gigabit Ethernet connections are to use fiber optic cabling.

	Dual Node
	10/100/1000 (Copper) Ethernet Connectivity
IBM supplied Ethernet	IBM supplied Ethernet
crossover cables	crossover cables

CtrlA CtrlB

DS4100#2 (in Rack B)

P5 520 #1 (DRS_Engine_1)

CtrlA CtrlB

DS4100#1 (in Rack A)

P5 520 #2 (DRS_Engine_2)

System		Channel	(tape)1
	board
	HMC1	Fibre Slot-
	HMC2
	10/100/1000 (T5)	2 Gb	Adapter
	10/100/1000 (T6)
	USB0 (T7)
	USB1 (T8)

Pwr GXT135p Graphics Adapter - Slot 2

2 Port 10/100/1000 Ethernet TX PCI-X Adapter - Slot 3 2 Gb Fibre channel Adapter - Slot 4 (DS4100)

Channel Adapter	- Slot 5 (DS4100)
2 Gb Fibre

System board

HMC1

HMC2

10/100/1000 (T5) 10/100/1000 (T6)

USB0 (T7)

USB1 (T8)

Channel	1 (tape)
Fibre	- Slot
2 Gb	Adapter

GXT135p Graphics	Adapter - Slot 2
Pwr

2 Port 10/100/1000 Ethernet TX PCI-X Adapter - Slot 3 2 Gb Fibre channel Adapter - Slot 4 (DS4100) 2 Gb Fibre Channel Adapter - Slot 5 (DS4100)

HACMP boot connection

Customer supplied Ethernet cables

HACMP standby - customer supplied cables

HACMP boot connection

Customer supplied

Ethernet cables

10/100/1000 EN Switch #1	10/100/1000 EN Switch #2
(customer's network)	(customer's network)

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