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RAID Controller Cabling
Example 2—Two Nonexpanders and Two RAID Controllers With 16 Drives
Figure C-2
two nonexpander transition cards to control eight drives in each of the two modular drive bays.
Four RAID cables are required (2 x UCSC-RC-1M-C260 and 2 x UCSC-RC-P8M-C260).
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Figure C-2
1
1
2
Cisco UCS C260 Server Installation and Service Guide
C-4
shows an example of a server that is using two RAID controllers in PCIe slots 3 and 5 and
Slot 5 RAID Controller to bay 1 drives 1–4:
The upper
blue
line is a 0.8m cable (UCSC-RC-P8M-C260) from the Slot 5 RAID controller SAS 0
connector to the nonexpander connector for PORT 1–4.
Slot 5 RAID Controller to bay 1 drives 5–8:
The
red
line is a 1m cable (UCSC-RC-1M-C260) from the Slot 5 RAID controller SAS 1 connector
to the nonexpander connector for PORT 5–8.
Slot 3 RAID Controller to bay 2 drives 1–4:
The
violet
line is a 1m cable (UCSC-RC-1M-C260) from the Slot 3 RAID controller SAS 0
connector to the nonexpander connector for PORT 1–4.
Slot 3 RAID Controller to bay 2 drives 5–8:
The lower
blue
line is a 0.8m cable (UCSC-RC-P8M-C260) from the Slot 3 RAID controller SAS 1
connector to the nonexpander connector for PORT 5–8.
The
green
and
yellow
lines are the cables from the RAID controllers to their respective battery
backup units.
RAID Controller Cabling Guidelines, Two Nonexpanders and Two Controllers
Transition cards, nonexpander version
(shown with fan tray removed)
Battery backup units
(2, mounted to the inner chassis wall)
Appendix C
RAID Controller Considerations
2
3
RAID controller cards in PCIe slots 3 and 5
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3
OL-24342-01
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