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
CtrlB
CtrlA
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)
CtrlB
CtrlA
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)
P
w
r
G
X
T
1
3
5
p
G
ra
p
h
ic
s
A
d
a
p
te
r
-
S
lo
t
2
2
P
o
rt
1
0
/1
0
0
/1
0
0
0
E
th
e
rn
e
t
T
X
P
C
I-
X
A
d
a
p
te
r
-
S
lo
t
3
2
G
b
F
ib
re
c
h
a
n
n
e
l A
d
a
p
te
r
-
S
lo
t
4
(
D
S
4
1
0
0
)
2
G
b
F
ib
re
C
h
a
n
n
e
l
A
d
a
p
te
r
-
S
lo
t
5
(
D
S
4
1
0
0
)
2
G
b
F
ib
re
C
h
a
n
n
e
l
A
d
a
p
te
r
-
S
lo
t
1
(
ta
p
e
)
P
w
r
G
X
T
1
3
5
p
G
ra
p
h
ic
s
A
d
a
p
te
r
-
S
lo
t
2
2
P
o
rt
1
0
/1
0
0
/1
0
0
0
E
th
e
rn
e
t
T
X
P
C
I-
X
A
d
a
p
te
r
-
S
lo
t
3
2
G
b
F
ib
re
c
h
a
n
n
e
l
A
d
a
p
te
r
-
S
lo
t
4
(
D
S
4
1
0
0
)
2
G
b
F
ib
re
C
h
a
n
n
e
l A
d
a
p
te
r
-
S
lo
t
5
(
D
S
4
1
0
0
)
2
G
b
F
ib
re
C
h
a
n
n
e
l
A
d
a
p
te
r
-
S
lo
t
1
(
ta
p
e
)
