D-23
Appendix D: SAS-936EL Backplane Specications
SEC_J2
SEC_J1
SEC_J0
PRI_J2
PRI_J1
B3
B2
B1
A3
A2
A1
PRI_J2
PRI_J1
A3
A2
A1
Cascading allows the system to access data at a faster rate by allowing several
backplanes to share resources to reduce latency time.
The rst backplane in a cascaded system requires a motherboard and HBA. Other
servers require a power control card, not a motherboard and HBA. For more infor-
mation, see the SC936 chassis manual.
3-4 Supported Cascading Congurations
Other Considerations:
Cascading supports up to 122 hard drives•
Use the same cables for all single port congurations•
Cable 0167L
(Internal cable)
Cable 0166L
(External Cable)
Single Port Cable
Assembly
HBA (Host Bus Adapter)
Port B Expander 2
Power Card
Power Card
SEC_J2
SEC_J1
SEC_J0
PRI_J2
PRI_J1
B3
B2
B1
A3
A2
A1
PRI_J2
PRI_J1
A3
A2
A1
Port B Expander 2
Port A Expander 1
SEC_J2
SEC_J1
SEC_J0
PRI_J2
PRI_J1
B3
B2
B1
A3
A2
A1
PRI_J2
PRI_J1
A3
A2
A1
Port B Expander 2
Port A Expander 1
Port A Expander 1
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