Supermicro SC836BE1C-R1K23B User Manual page 118

SC836 Chassis Manual
Failover
The BPN-SAS3-836EL2 model backplane has two expanders which enable effective
failover and recovery.
Single Host Bus
Adapter
In a single host bus configuration, the
backplane connects to one host bus
adapter.
Single Host Bus Adapter
Failover
If the expander or data path in Port A
fails, the system automatically switches
to Port B with application software or
failover support.
MH1 MH13
S_ICE_HDR
J37 2 20
EC16
CG3 CG1
SEC-J4
SEC_J3
1 19 EC19
L12
CG2 L10
CG1
SEC_J2 CG3
SEC-J3
CG2
MH2
EC15
EC17
CG3 CG1
BAR CODE
SEC-J2
SEC_J1
CG2
HS1
CG3 AF
CG1 AE
Y
SEC-J1
EC13 EC14
SEC_J0 R
CG2
S_HB_LED
S_SDB K
A C 4
J36 1
J35 4 Y2
S_UART 1 E
A
26 25 20 15 10 5 1
4 H E A
H E A
1 4 1 PWR3
PWR4 1 1
2
J29 5 5
MH3
MH12
U48
9
1
S_MDIO
1 2 3
Port B
Expander 2
Figure 3EL-6. Single HBA
MH1 MH13
S_ICE_HDR
J37 2 20
EC16
CG3 CG1
SEC-J4
SEC_J3
1 19 EC19
L12
L10
CG2
SEC_J2 CG3 CG1
SEC-J3
CG2
MH2
EC15
EC17
CG3 CG1
BAR CODE
SEC-J2
SEC_J1
CG2
HS1
AF
CG3 CG1 AE
SEC-J1 Y
EC13 EC14 R
SEC_J0
CG2
S_HB_LED
S_SDB K
A C
J36 1 4
J35
S_UART 1 4 E Y2
A
26 25 20 15
10 5 1
4 H E A
H E A
1 4 1
PWR4 PWR3
1 1
2
5 5
J29
MH3 MH12
U48
9
1
S_MDIO
1 2 3
Port B
Expander 2
C-50
SAS HBA
MH5
P_SDB L2
ACTLED1 1 J24 4 1 J19 P_UART P_HB_LED
D21
1 4
A
C
EC1
EC20 EC2
L7
2 4
SMB 1 3
J17 A
C
SECONDARY EXPANDER 2 4 EC3 EC4 J28
1 2 20
1 3 P_ICE_HDR
PRI_I2C1
WWN MH7
L6 1 C21
26
25
EC12
EC11
20
U1
15
PWR2
10
H E A
H E A
1 1 5
LT3
1 4 5 5 1
A E K
PWR1
U8
10
1
J34
S_JTAG 8
P_MDIO 2
9 L1
MH9 J27
1
1 4 J18
1
10
P_JTAG
SAS HBA
MH5
P_SDB
ACTLED1 1 P_UART P_HB_LED L2
J24 4 1 J19
D21
1 4
A
C
EC20 EC1 EC2
L7
2 4
SMB
1 3
A
J17
C
SECONDARY EXPANDER 2 J28
4 1 EC3 EC4 2 20
1 3
PRI_I2C1 P_ICE_HDR
WWN MH7
L6
1 C21
26
25
EC12 EC11
20
U1
15
PWR2
10
H E A
H E A
5
1 1
LT3
5 5
1 4 1
PWR1 A E K
U8
10
1
J34
S_JTAG 8
P_MDIO 2
9
MH9 J27
1
1 4
J18
1
P_JTAG
Figure 3EL-7. Single HBA Failover
MH6 MH4
1 2 3
A C A C
L4 5V_LED1 12V_LED1
BPN-SAS3-836EL2
EC10 EC9
PRI-J4
REV 1.01
DESIGNED IN USA CG3 CG1
L5
L3
PRI-J3 PRI_J3
CG2
P_MDIO CG3 CG1
EC7 EC8
WWN
MH8
PRI_J2
CG2
MH11
PRI-J2
HS2
CG3 CG1
PRI_J1
PRI-J1 CG2
CG3 CG1
LT4
R Y AE AF
PRI_J0
CG2
MH10
EC6 EC5
Y1
Port A
Expander 1
MH6 MH4
1 2 3
A C A C
5V_LED1 12V_LED1
L4
BPN-SAS3-836EL2
EC10 EC9
PRI-J4
REV 1.01
CG3 CG1
DESIGNED IN USA
L5
L3
PRI-J3
PRI_J3 CG2
P_MDIO CG3
CG1
EC7 EC8 WWN
MH8
PRI_J2
CG2
MH11
PRI-J2
HS2
CG3 CG1
PRI_J1
CG2
PRI-J1
CG1
CG3
LT4
R Y AE AF PRI_J0
CG2
MH10
EC6 EC5
L1
10 Y1
Port A
Expander 1