Cisco Systems C24 M3, UCSVEZC24324 Small Form Factor 16-Drive Backplane (No Expander) Cabling

C-19

Cisco UCS C24 Server Installation and Service Guide

OL-26647-01

Appendix C RAID Controller Considerations

RAID Controller Cabling

Step 1 Connect SAS cable 1 from card connector SAS 0 to the Port0 connector on the expander.

Step 2 Connect SAS cable 2 from card connector SAS 1 on the card to the Port1 connector on the expander.

Step 3 If you are using the 9265CV-8i card, you can also install an SCPM for RAID backup. Install the SCPM

(see Replacing a SuperCap Power Module (RAID Backup Unit), page 3-39), then attach the cable from

the card to the SCPM.

Small Form Factor 16-Drive Backplane (No Expander) Cabling

The SFF 16-drive option does not use a SAS expander, so connections from the controller are made

directly to the backplane. The cable connections required for each type of controller are as follows:

• Embedded RAID (Cable UCSC-CABLE-A7), page C-19

• LSI MegaRAID SAS 9266CV-8i, SAS 9220-8i, or SAS 9240-8i PCIe Card (Cable

UCSC-CABLE-A7 and -A8), page C-19

This option can control up to eight drives. This option can be used only with the SFF 16HDD version of

the server because this controller does not operate through an expander.

The required UCSC-CABLE-A7 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.

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 SCU_PORT_1 to the drives 5–8 connectors

on the backplane.

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

These option can control up to 8 drives with one controller. You can control up to 16 drives with two

controllers and two cable kits.

• Use cable pair UCSC-CABLE-A7 for the first controller.

• Use cable pair UCSC-CABLE-A8 for the second controller, if used.

First Controller (Drives 1 through 8, Cable UCSC-CABLE-A7):

The required UCSC-CABLE-A7 cable kit has two mini-SAS cables. Cable 1 controls drives 1–4 and

cable 2 controls drives 5–8. Make the following connections to your first controller card:

Step 1 Connect mini-SAS cable 1 from the card connector SAS1 to the drives 1–4 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 card connector SAS2 to the drives 5–8 connectors on the backplane.

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