Supero SC417E16-RJBOD1, User Manual

Page: 93 / 104

E-3
Appendix E: SC417J Chassis Internals and Externals
Figure E-4: Special Connector Cable Board for use with SAS2-216EL
Internal Cables
A special cable has been designed by Supermicro to connect the two backplanes
mentioned above to the side of the chassis.
SMCI confidential document 4 Whitepaper
There is also dual version of the same expander which has 2 expander chips therefore you
have two paths to each drive behind the expander. It is mandatory to use SAS drives
when you use the dual expander backplane. This is because the SAS drives have dual
connectivity therefore enabling the redundancy feature. So No SATA drives should be
used in dual expander backplanes.
Section 1.4
– Internal Cable
A special cable is designed to connect the two backplanes mentioned above to the side of
the chassis. See picture below:
Picture of BPN-SAS2-847EL1
Figure 3
Special connector cable board
to use w/ SC847E16 – top view
Figure 4
Figure E-5: Up-Close of the Special Connector Cable Board
This special connector combines four CBL-0386L cables into one simple connector
board which is installed on the side of the chassis to be connected to the external
systems.
SMCI confidential document 5 Whitepaper
It combines four SFF 8087 cables into one simple
connector board
which is installed on
the side of the chassis to be connected to the outside world. Below is a close up of how
the connectors look:
In the above picture, you can see the SFF 8087 end of one of the cables which connect to
the backplanes that are inside the chassis as well as the 4 X SFF 8088 which would be
mounted on the side of the chassis to be connected to either downstream JBOD or
upstream HBA/RAID.
Section 2 – 847 JBOD chassis internal connectivity
Each backplane is connected separately to the outside world. To configure this, you need
to connect the J0 connector of both BPN-SAS2-847EL1 and BPN-SAS2-846EL1
backplanes to cables in
section 1.4
. The other two cables are connected to J1 of BPN-
SAS2-847EL1 and J2 of BPN-SAS2-847EL1 to make the chassis cascade ready for
future. The other side of the cables is a simple cable card which is then mounted on the
side of the JBOD chassis to the outside world. You are now ready to be cascaded from a
host or any external host/server system (i.e. head unit) or cascade to another downstream
JBOD. See more about external host/server connectivity in
section 3
.
Special connector cable board to
use w/ SC847E16 – front view
Figure 5
In the illustration above, the end of one of the cables and the four-end CBL-0386L
are shown. The CBL-0281L cable connects to the backplanes that are inside the
chassis, as well as the 4x CBL-0386L, which would be mounted on the side of
the chassis and is to be connected to either a downstream JBOD or an upstream
HBA/RAID.