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Cisco UCS C24 Server Installation and Service Guide
OL-26647-01
Appendix C RAID Controller Considerations
Supported RAID Controllers and Required Cables
Supported RAID Controllers and Required Cables
This server supports the RAID controller options, cables, and RAID backup units shown in Table C-1.
Caution Do not use the embedded MegaRAID controller and a hardware RAID controller card at the same time.
This is not supported and could result in data loss.
Note This server supports up to two internal PCIe-style RAID controllers, plus one external PCIe-style RAID
controller. Do not mix internal controller types in the server. You can mix internal controllers with an
external controller.
Note The embedded RAID option is available only with the SFF 16-drive backplane. It does not operate
through an expander.
Note The cables in this section apply to both single- and dual-CPU configurations.
Table C-1 lists the RAID options for the small form factor (SFF) versions of the server.
Ta b l e C-1 Cisco UCS C24 Small Form Factor RAID Options
Controller Style Maximum Drives
SuperCap
Power
Module?
RAID
Levels
Supported
Required Cables
(Each PID is a cable-pair kit.)
Embedded RAID
1
on motherboard
2
1. The embedded RAID controller must be enabled in the BIOS.
2. Embedded RAID SAS drive control requires an optional SCU ROM upgrade chip to be installed on the motherboard.
Onboard SFF 16HDD:
4 SATA (default) or
8 SAS
3
internal
3. Support for eight SAS drives requires an optional SCU upgrade ROM module on the motherboard.
No 0, 1, 5
4
, 10
4. Integrated RAID 5 support requires an optional software key.
SFF 16HDD: UCSC-CABLE-A7
LSI MegaRAID
SAS 9220-8i
PCIe SFF 24HDD:
16 internal
5
SFF 16HDD:
8 internal
6
5. The 9220-8i controller can create a RAID array with maximum 16 drives, even if it detects more than 16 drives.
6. In the 16HDD version, two controller cards can be installed to control a total of 16 drives.
No 0, 1, 10
SFF 24HDD: UCSC-CABLE-A6
SFF 16HDD, 1st-controller: UCSC-CABLE-A7
SFF 16HDD, 2nd-controller: UCSC-CABLE-A8
LSI MegaRAID
SAS 9240-8i
PCIe SFF 24HDD:
16 internal
7
SFF 16HDD:
8 internal
No 0, 1, 5, 10,
50
SFF 24HDD: UCSC-CABLE-A6
SFF 16HDD, 1st-controller: UCSC-CABLE-A7
SFF 16HDD, 2nd-controller: UCSC-CABLE-A8
LSI MegaRAID
SAS 9265CV-8i
PCIe SFF 24HDD:
24 internal
SFF 16HDD:
8 internal
Yes 0, 1, 5, 6, 10,
50, 60
SFF 24HDD: UCSC-CABLE-A6
SFF 16HDD, 1st-controller: UCSC-CABLE-A7
SFF 16HDD, 2nd-controller: UCSC-CABLE-A8
LSI MegaRAID
SAS 9285CV-e
PCIe 240 external Yes 0, 1, 5, 6, 10,
50, 60
Cisco does not sell the cables for external drives.