Appendix C RAID Controller Considerations
RAID Controller Cabling
Example
Figure C-1 shows an example of a server that is using one RAID controller in PCIe slot 3 and a nonexpander transition card to control eight drives in the modular drive bay.
Two RAID cables are required (1 UCSC-CABLE-S and 1 UCSC-CABLE-L).
•The blue line is a 0.8m cable (UCSC-CABLE-S) from the RAID controller SAS 0 connector to the nonexpander connector for PORT 1–4.
•The red line is a 1m cable (UCSC-CABLE-L) from the RAID controller SAS 1 connector to the nonexpander connector for PORT 5–8.
•The green line is the cable from the RAID controller to the SCPM backup unit.
Figure C-1 RAID Controller Cabling Guidelines, Nonexpander Transition Card
| 1 | 2 | 3 |
|
|
| 334371 |
1 | Nonexpander transition card | 3 RAID controller card in PCIe slot 3 | |
| (shown with fan tray removed) |
|
|
2 | SCPM backup unit |
|
|
| (mounted to tray on air baffle) |
|
|
Cisco UCS C420 Server Installation and Service Guide
|
| |
|
