Cisco Systems OL-26646-01 manual Cisco UCS C22 Server Cabling, Backplane and Expander Options

Appendix C RAID Controller Considerations

RAID Controller Cabling

Cisco UCS C22 Server Cabling

This section contains the following topics:

•Backplane and Expander Options, page C-19

•Small Form Factor 8-Drive Backplane Cabling, page C-19

•Large Form Factor 4-Drive Backplane Cabling, page C-21

Backplane and Expander Options

The server is orderable in two different versions, each with one of two different front panel/backplane configurations:

•Cisco UCS C22 (small form-factor (SFF) drives, with 8-drive backplane. Holds up to eight 2.5-inch hard drives or solid state drives.

•Cisco UCS C22 (large form factor (LFF) drives, with 4-drive backplane). Holds up to four 3.5-inch hard drives.

Note Dual controllers are not supported. Do not mix controller types in the server.

Small Form Factor 8-Drive Backplane Cabling

The cable connections required for each type of controller are as follows:

•Embedded RAID, page C-19

•LSI MegaRAID 9220-4i PCIe Card, page C-20

•LSI MegaRAID 9220-8i,9240-8i, or 9265CV-8i PCIe Card, page C-20

Embedded RAID

This option can control up to eight internal drives.

The required UCSC-CABLE-AE cable kit has two mini-SAS cables. Cable 1 controls drives 1–4 and cable 2 controls drives 5–8.

Step 1 Connect mini-SAS cable 1 from the motherboard connector SCU_Port_0 to the drives 1–4 connectors on the backplane (see Figure C-2).

Step 2 Connect the cable 1 SGPIO connector labeled, “S1” to backplane connector A.

Step 3 Connect mini-SAS cable 2 from the motherboard connector SCU_Port_1 to the drives 5–8 connectors on the backplane.

Step 4 Connect the cable 2 SGPIO connector labeled, “S2” to backplane connector B.

	Cisco UCS C22 Server Installation and Service Guide
OL-26646-01		C-19