Cisco UCS C220 M4

C-2
Cisco UCS C220 M4 Server Installation and Service Guide
OL-32473-01
Appendix C RAID Controller Considerations
Supported RAID Controllers and Required Cables
Supported RAID Controllers and Required Cables
This server supports the RAID controller options and cable requirements shown in Table C-1.
Caution Do not mix controller types in the server. Do not use the embedded MegaRAID controller and a hardware
RAID controller card at the same time. This combination is not supported and could result in data loss.
Table C-1 Cisco UCS C220 M4 RAID Options
Controller Style
Server Version/
Maximum Drives Controlled SCPM RAID Levels Server Version/Required Cables
Embedded RAID
(PCH SATA)
On
board
• SFF 8-drives/no expander:
8 internal SATA drives
• LFF 4-drives/no expander:
The embedded RAID
option is not available with
the large form factor
drives, 4-drive version of
the server at this time.
No 0, 1, 5
1
, 10
1. Embedded RAID 5 support requires an optional RAID 5 key module.
• SFF 8-drives/no expander:
(UCS-220CBLSR8=)
•
LFF 4-drives/no expander:
Not supported.
Cisco UCS 12G SAS
Modular RAID
Controller
This controller can be
ordered with modular
flash-based write
cache (FBWC)
options: 512 MB,
1 GB, 2 GB, or 4 GB.
PCIe
• SFF 8-drives/no expander:
8 internal drives
• LFF 4-drives/no expander:
4 internal drives
Yes
2
2. SCPM = supercap power module (RAID backup unit).
Varia b l e b y
cache size:
• No cache:
0, 1, 10
• 512MB
cache:
0, 1, 5, 10, 50
• 1GB, 2GB,
or 4GB cache:
0, 1, 5, 6, 10,
50, 60
• SFF 8-drives/no expander:
(
UCS-220CBLMR8=)
• LFF 4 drives/no expander:
(
UCS-220CBLMR4=)
Cisco UCS 12G SAS
Modular HBA
Note: See also
Write-Cache Policy
for Cisco 12G SAS
Modular RAID
Controller, page C-3.
PCIe
• SFF 8-drives/no expander:
8 internal drives
• LFF 4-drives/no expander:
4 internal drives
No Non-RAID
• SFF 8 drives/expander:
(
UCS-220CBLMR8=)
• LFF 4 drives/no expander:
(
UCS-220CBLMR4=)
Cisco UCS RAID SAS
9300-8e HBA
Note: See also Cisco
UCS SAS 9300-8e
HBA Considerations,
page C-4.
PCIe
• All server versions
8 external SAS+SATA
ports, controlling up to
1024 non-RAID external
drives
No Non-RAID
• External drive cables are
not sold by Cisco.