Sff 24-Drive Backplane With Expander Cabling; Lff 12-Drive Backplane With Expander - Cisco UCS C240 M4 Installation And Service Manual

Appendix C RAID Controller Considerations

SFF 24-Drive Backplane with Expander Cabling

The SFF 24-drive option has a backplane and SAS expander.
Cisco UCS 12G Modular RAID Controller
This option can control up to 24 drives.
The required
Make the following connections:

LFF 12-Drive Backplane with Expander

The LFF 12-drive option has a SAS expander integrated with the backplane.
Cisco UCS 12G Modular RAID Controller
This option can control up to 12 drives.
The required
end and two mini-SAS HD single connectors on the other end.
OL-32474-01
UCSC-CBLMR24=
Connect one end of the cable to the modular RAID controller card.
1.
Connect the other end of the cable to the single mini-SAS HD connector on the expander.
2.
UCSC-CBLMR12=
1. Connect the mini-SAS double connector to the modular RAID controller card.
2. Connect single connector PORT A to the PORT A connector on the backplane.
3. Connect single connector PORT B to the PORT B connector on the backplane.
cable kit has one cable with a mini-SAS HD connector on each end.
cable kit has one Y-cable with a mini-SAS HD double connector on one
Cisco UCS C240 M4 Server Installation and Service Guide
RAID Controller Cabling
C-7