B-11
Appendix B BPN-SAS3-216EL Backplane Specifications
Port A
Expander 1
Port B
Expander 2
Dual Host Bus Adapter
In a dual host bus configuration, the
backplane connects to two HBAs.
Figure B-8. Dual HBA
Dual Host Bus Adapter
Failover
If the expander or data path in Port
A fails, the system automatically
switches to Port B. This maintains a full
connection to all drives.
Figure B-9. Dual HBA Failover
DESIGNED IN USA
BPN-SAS3-216EL
REV:1.00
WWN ADDRESS
BAR CODE
A1
A2
CG1
CG2
B1
B2
C1
C2
CG3
M8
M7
O8
N8
N7
P8
P7
O7
CG5
CG4
1
2
3
A
1
E
5
H
5
1
A
E
H
14
13
12
11
2
24
22
12
11
22
12
11
22
12
11
+
+
+
+
+
4
1
1
4
1
4
1
2
9
8
1
10
1
5
10
15
20
25
30
AK
AE
Y
R
K
E
A
J9
L8
U3
C98
C99
C102
C103
C121
C165
C96
C12
C11
C162
C108
C191
C111
C119
CB120
U15
TP62
TP15
U37
L1
F1
C176
U27
U26
R11
R184
R40
R186
R185
R17
R15
R177
L7
L5
F2
C23
CT199
CS26
C207
C135
C128
C132 C133
CB31
CB71
CB81
CB91 C131
C76
C177
C122
FAN1
J10
J5
U8
U9
U2
JP3
J11
U4
U1
SDB
UA
RT
MDIO
J9D
J9C
J9B
J9A
DESIGNED IN USA
BPN-SAS3-216EL
REV:1.00
WWN ADDRESS
BAR CODE
A1
A2
CG1
CG2
B1
B2
C1
C2
CG3
M8
M7
O8
N8
N7
P8
P7
O7
CG5
CG4
1
2
3
A
1
E
5
H
5
1
A
E
H
14
13
12
11
2
24
22
12
11
22
12
11
22
12
11
+
+
+
+
+
4
1
1
4
1
4
1
2
9
8
1
10
1
5
10
15
20
25
30
AK
AE
Y
R
K
E
A
J9
L8
U3
C98
C99
C102
C103
C121
C165
C96
C12
C11
C162
C108
C191
C111
C119
CB120
U15
TP62
TP15
U37
L1
F1
C176
U27
U26
R11
R184
R40
R186
R185
R17
R15
R177
L7
L5
F2
C23
CT199
CS26
C207
C135
C128
C132 C133
CB31
CB71
CB81
CB91 C131
C76
C177
C122
FAN1
J10
J5
U8
U9
U2
JP3
J11
U4
U1
SDB
UA
RT
MDIO
J9D
J9C
J9B
J9A
SAS HBA
SAS HBA
DESIGNED IN USA
BPN-SAS3-216EL
REV:1.00
WWN ADDRESS
BAR CODE
A1
A2
CG1
CG2
B1
B2
C1
C2
CG3
M8
M7
O8
N8
N7
P8
P7
O7
CG5
CG4
1
2
3
A
1
E
5
H
5
1
A
E
H
14
13
12
11
2
24
22
12
11
22
12
11
22
12
11
+
+
+
+
+
4
1
1
4
1
4
1
2
9
8
1
10
1
5
10
15
20
25
30
AK
AE
Y
R
K
E
A
J9
L8
U3
C98
C99
C102
C103
C121
C165
C96
C12
C11
C162
C108
C191
C111
C119
CB120
U15
TP62
TP15
U37
L1
F1
C176
U27
U26
R11
R184
R40
R186
R185
R17
R15
R177
L7
L5
F2
C23
CT199
CS26
C207
C135
C128
C132 C133
CB31
CB71
CB81
CB91 C131
C76
C177
C122
FAN1
J10
J5
U8
U9
U2
JP3
J11
U4
U1
SDB
UA
RT
MDIO
J9D
J9C
J9B
J9A
DESIGNED IN USA
BPN-SAS3-216EL
REV:1.00
WWN ADDRESS
BAR CODE
A1
A2
CG1
CG2
B1
B2
C1
C2
CG3
M8
M7
O8
N8
N7
P8
P7
O7
CG5
CG4
1
2
3
A
1
E
5
H
5
1
A
E
H
14
13
12
11
2
24
22
12
11
22
12
11
22
12
11
+
+
+
+
+
4
1
1
4
1
4
1
2
9
8
1
10
1
5
10
15
20
25
30
AK
AE
Y
R
K
E
A
J9
L8
U3
C98
C99
C102
C103
C121
C165
C96
C12
C11
C162
C108
C191
C111
C119
CB120
U15
TP62
TP15
U37
L1
F1
C176
U27
U26
R11
R184
R40
R186
R185
R17
R15
R177
L7
L5
F2
C23
CT199
CS26
C207
C135
C128
C132 C133
CB31
CB71
CB81
CB91 C131
C76
C177
C122
FAN1
J10
J5
U8
U9
U2
JP3
J11
U4
U1
SDB
UA
RT
MDIO
J9D
J9C
J9B
J9A
SAS HBA
SAS HBA
Port A
Expander 1
Port B
Expander 2
IMPORTANT:
For RAID controllers, redundancy is achieved through port failover.
For multiple HBAs, MPIO software is required to achieve failover protection.
Failover with RAID Cards and Multiple HBAs
The BPN-SAS3-216EL backplane may be configured for failover with multiple HBAs
using either RAID controllers or HBAs to achieve failover protection.
RAID Controllers:
If RAID controllers are used, then the failover is accomplished
through port failover on the same RAID card.
HBAs
: If multiple HBAs are used to achieve failover protection and load balancing,
Linux MPIO software
must be installed and correctly configured to perform the load
balancing and failover tasks.
J
9
A
J
9
B
J
9
C
J
9
D
J
9
A
J
9
B
J
9
C
J
9
D
J
9
A
J
9
B
J
9
C
J
9
D
J
9
A
J
9
B
J
9
C
J
9
D