D-12
SC847J Chassis Manual
Single Host Bus Adapter
In a single host bus configuration, the
backplane connects to one Host Bus
Adapter (HBA).
SAS HBA
SAS HBA
Primary ports
Expander 1
Primary ports
Expander 1
Primary ports
Expander 1
Primary ports
Expander 1
Secondary ports
Expander 2
Secondary ports
Expander 2
Secondary ports
Expander 2
Secondary ports
Expander 2
The BPN-SAS2-847EL2 backplane has two expanders which allow effective failover.
D-11 Failover
Single Host Bus Adapter
Failover
If the expander or data path in the
primary ports fails, the system automati-
cally switches to the secondary ports.
SAS HBA
SAS HBA
SAS HBA
SAS HBA
Dual Host Bus Adapter
In a Dual Host Bus Configuration, the
backplane connects to two Host Bus
Adapters.
Dual Host Bus Adapter
Failover
If the expander or data path in the
primary ports fails, the system auto-
matically switches to the secondary
ports. This maintains a full connection
to all drives. Note that this configura
-
tion requires additional MPIO software.
Contact your Supermicro authorized
representative for details.
Figure D-6: Failover Configurations
Summary of Contents for SC847E16-R1K28JBOD
Page 12: ...SC847J SAS2 Chassis Manual 1 4 Notes ...
Page 40: ...SC847J SAS2 Chassis Manual 4 2 ...
Page 45: ...4 7 Chapter 4 Chassis Setup and Maintenance Figure 4 8 Placing the System Fan ...
Page 47: ...4 9 Chapter 4 Chassis Setup and Maintenance ...
Page 48: ...SC847J SAS2 Chassis Manual 4 10 Notes ...
Page 58: ...SC847J SAS2 Chassis Manual 5 10 Notes ...
Page 64: ...SC847J SAS2 Chassis Manual B 2 Notes ...
Page 87: ...C 24 SC847J SAS2 Chassis Manual Notes ...
Page 111: ...D 24 SC847J Chassis Manual Notes ...
Page 120: ...E 9 Appendix E SC847J Chassis Internals and Externals Notes ...