Supermicro SC826BE1C-R920LPB - E-13 Failover with RAID Cards and Multiple HBAs

E-11
Appendix E: SAS2-826EL Backplane Specications
Dual Host Bus Adapter
In a dual host bus conguration, the
backplane connects to two host bus
adapters.
Dual Host Bus Adapter Failover
If the expander or data path in Port
A fails, the system will automatically
fail over to Port B. This maintains a
full connection to all drives.
Q9
F1
FANFAIL1
A
C
OVERHEATFAIL1
A
C
5V_LED1
A
C
12V_LED1
A
C
ACT18
A
C
ACT17
A
C
+
C367
C366
C365
C353C352
+
C134
+
C133
+
C132
C121
C120
+
C119
+
EC19
R167
2
1
J16
J19
PRI_J1
PRI_J0
SEC_J0
SEC_J1
BC8
BC518
C157
C395
1
FANFAIL_LED_DISABLE
1
BUZZER_ENB1
1
MDIO1
MDIO2
1
ACTLED1
FAN_MONITOR_DISABLE
1
MH9
MH8
MH7
MH6
MH5
MH4
4
1
FAN1
4
FAN2
1
FAN3
1
8
J18
1
8
5
Y E
20
R K
10 15
AE
25 28
AH
5
E
20
R K
10 15
AE
25 28
AH
SEC_MODE1
1
3
1
SEC_MODE2
1
3
Y2
1
4
EXPDBG1
1
EXPDBG2
1
4
UART_S1
1
4
UART_P1
PRI_MODE1
PRI_MODE2
PRI_I2C1
Q4
R187
JP1
1
4
+
C408
BCA115
BCA121
C265
C72
R305
+
C128
+
+
C130
+
+
C362
+
EC6
+
+
EC10
+
EC11
EC12
+
EC13
+
EC14
+
+
+
EC18
+
EC7
+
EC8
+
EC9
+5V
+12V
GND GND
PWR1
+5V
+12V
GNDGND
PWR2
+5V
+12V
GNDGND
PWR3
SAS CODE
BAR CODE
1.00REV:
BPN-SAS2-826EL2
MACH FINISH
30
ANGLE
SPECIFIED DIMENSIONS
UNLESS OTHERWISE
XXX
XX
X
.010
.03
.1
TOLERANCES
DECIMAL
ARE IN INCHES
Teddy/BenDESINGER:
DATE: 2009.12.15
PROJECT NAME:
SAN JOSE,CA 95131
DESIGNED BY SUPERMICRO U.S.A.
www.supermicro.com
TEL:408-503-8000 FAX:408-503-8008
SILKSCREEN
PRIMARY-SIDE
S UPER
R
S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER
RRRRRRRRRR
WWN
WWN
AB
AA
DESIGNED IN USA
REV 1.01
BPN-SAS2-826EL2
SAS HBA
Port A
Expander 1
Port B
Expander 2
SAS HBA
Q9
F1
FANFAIL1
A
C
OVERHEATFAIL1
A
C
5V_LED1
A
C
12V_LED1
A
C
ACT18
A
C
ACT17
A
C
+
C367
C366
C365
C353C352
+
C134
+
C133
+
C132
C121
C120
+
C119
+
EC19
R167
2
1
J16
J19
PRI_J1
PRI_J0
SEC_J0
SEC_J1
BC8
BC518
C157
C395
1
FANFAIL_LED_DISABLE
1
BUZZER_ENB1
1
MDIO1
MDIO2
1
ACTLED1
FAN_MONITOR_DISABLE
1
MH9
MH8
MH7
MH6
MH5
MH4
4
1
FAN1
4
FAN2
1
FAN3
1
8
J18
1
8
5
Y E
20
R K
10 15
AE
25 28
AH
5
E
20
R K
10 15
AE
25 28
AH
SEC_MODE1
1
3
1
SEC_MODE2
1
3
Y2
1
4
EXPDBG1
1
EXPDBG2
1
4
UART_S1
1
4
UART_P1
PRI_MODE1
PRI_MODE2
PRI_I2C1
Q4
R187
JP1
1
4
+
C408
BCA115
BCA121
C265
C72
R305
+
C128
+
+
C130
+
+
C362
+
EC6
+
+
EC10
+
EC11
EC12
+
EC13
+
EC14
+
+
+
EC18
+
EC7
+
EC8
+
EC9
+5V
+12V
GND GND
PWR1
+5V
+12V
GNDGND
PWR2
+5V
+12V
GNDGND
PWR3
SAS CODE
BAR CODE
1.00REV:
BPN-SAS2-826EL2
MACH FINISH
30
ANGLE
SPECIFIED DIMENSIONS
UNLESS OTHERWISE
XXX
XX
X
.010
.03
.1
TOLERANCES
DECIMAL
ARE IN INCHES
Teddy/BenDESINGER:
DATE: 2009.12.15
PROJECT NAME:
SAN JOSE,CA 95131
DESIGNED BY SUPERMICRO U.S.A.
www.supermicro.com
TEL:408-503-8000 FAX:408-503-8008
SILKSCREEN
PRIMARY-SIDE
S UPER
R
S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER
RRRRRRRRRR
WWN
WWN
AB
AA
DESIGNED IN USA
REV 1.01
BPN-SAS2-826EL2
SAS HBA
Port A
Expander 1
Port B
Expander 2
SAS HBA
E-13 Failover with RAID Cards and Multiple HBAs
The BPN-SAS2-826EL backplane may be congured for failover with multiple HBAs
using either RAID controllers or HBAs to acheive 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 congured to perform
the load balancing and failover tasks.
IMPORTANT: For RAID controllers, redundancy is achieved through port failover.
For multiple HBAs MPIO software is required to achieve failover protection.
Figure E-7. Failover with RAID Cards and Multiple HBAs