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Cisco UCS C24 Server Installation and Service Guide
OL-26647-01
Appendix C RAID Controller Considerations
RAID Controller Cabling
Second Controller (Drives 9 through 16, Cable UCSC-CABLE-A8):
The required UCSC-CABLE-A8 cable kit has two mini-SAS cables. To control 16 drives in this
configuration, you must add a second controller card to control drives 9–16. Cable 3 controls drives 9–12
and cable 4 controls drives 13–16. Make the following connections to your second controller card:
Step 1 Connect mini-SAS cable 1 from the card connector SAS1 to the drives 9–12 connectors on the
backplane.
Step 2 Connect the cable 1 SGPIO connector labeled, “S1” to its backplane connector.
Step 3 Connect mini-SAS cable 2 from the motherboard connector SAS2 to the drives 13–16 connectors on the
backplane.
Step 4 Connect the cable 2 SGPIO connector labeled, “S2” to its backplane connector.
Large Form Factor 12-Drive Backplane With Expander Cabling
The cable connections required for each type of controller are as follows:
LSI MegaRAID SAS 9266CV-8i, SAS 9220-8i, or SAS 9240-8i PCIe Card (Cable UCSC-CABLE-11)
This option can control up to 12 drives.
The required UCSC-CABLE-11 cable kit has two cables. Cable 1 controls drives 1–6 and cable 2 controls
drives 7–12.
Step 1 Connect mini-SAS cable 1 from connector SAS1 on the card to the SAS1 connector on the expander.
Step 2 Connect mini-SAS cable 2 from connector SAS2 on the card to the SAS2 connector on the expander.