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IBM System Storage DR550 Version 3.0 ------17 March 2006 Page 43
IBM Storage Systems Copyright © 2006 by International Business Machines Corporation
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-
X Adapter 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
CtrlBCtrlA
DS4100#2
(in Rack B)
10/100/1000 EN Switch #1
(customer's network)
10/100/1000 EN Switch #2
(customer's network)
Customer supplied
Ethernet cables
IBM supplied Ethernet
crossover cables
IBM supplied Ethernet
crossover cables
P5 520 #1
(DRS_Engine_1)
P5 520 #2
(DRS_Engine_2)
CtrlBCtrlA
DS4100#1
(in Rack A)
HACMP boot connection
HACMP boot connection
HACMP standby - customer supplied cables
Customer supplied
Ethernet cables
10/100/1000 (T6)
HMC1
HMC2
System
board
10/100/1000 (T5)
USB0 (T7)
USB1 (T8)
10/100/1000 (T6)
HMC1
HMC2
System
board
10/100/1000 (T5)
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)
2 Gb Fibre Channel Adapter
- Slot 5 (DS4100)
2 Gb Fibre Channel
Adapter - Slot 1 (tape)
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)
2 Gb Fibre Channel Adapter
- Slot 5 (DS4100)
2 Gb Fibre Channel
Adapter - Slot 1 (tape)