3-42
Cisco UCS C220 M4 Server Installation and Service Guide
OL-32473-01
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Special Considerations for Cisco UCS Fusion ioDrive3 Storage Accelerator Cards
Table 3-7
describes the requirements for the supported Cisco UCS Fusion ioDrive3 cards.
Enabling Higher Power-Draw for Fusion ioDrive3 Cards
Some Fusion ioDrive3 accelerator cards such as the 5800 GB card draw 25 W by default but can achieve
higher performance when the PCIe slot is configured to provide more than 25 W for the device.
PCIe slots that can be configured to support more than 25 W power draw: All.
All slots can support the higher device power draw of 55 W (75 W maximum) when configured with the
override parameter in the IO Accelerator VSL software.
Note
See the Cisco UCS power calculator to determine the total power draw for your exact server
configuration:
http://www.cisco.com/assets/cdc_content_elements/flash/dataCenter/cisco_ucs_power_calculator/
The override parameter in the IO Accelerator VSL software (in the
/usr/modprove.d/iomemory-vsl.conf
file) overrides the setting that prevents devices from drawing
more than 25 W from the PCIe slot. The parameter is enabled by device, by using the device serial
numbers.
Note
The override parameter is a setting for the IO Accelerator VSL software by server and is not stored in
the device. When moved to a new server, the device defaults to the 25 W power limit until an external
power cable is added or the override parameter is enabled for that device in the new server.
Step 1
Determine the serial number of the installed Fusion device by using the
fio-status
command in the IO
Accelerator VSL software. Sample output is shown here:
fio-status
Adapter: Dual Controller Adapter
Table 3-7
Cisco UCS C220 M4 Requirements for Fusion ioDrive3 Cards
Card
Maximum
Number of Cards
Supported
Slots That
Support These
Cards
Slots That
Support >25W
Power
Override
Minimum
Cisco IMC
Firmware
Card Height
(rear-panel
tab)
Cisco UCS 5800 GB MLC Fusion ioDrive3
UCSC-F-FIO-5800M=
1
PCIE 1
All
1
1.
All slots can be enabled to provide more than the default 25 W power draw for higher performance on some cards. See
Enabling Higher Power-Draw for
Fusion ioDrive3 Cards, page 3-42
.
2.0(2)
Full height
Cisco UCS 2900 GB MLC Fusion ioDrive3
UCSC-F-FIO-2900M=
2
PCIE 1
PCIE 2
Not
applicable
2.0(2)
Half height
2
2.
A rear-panel tab adapter is required to fit the half-height cards in full-height slots.
Cisco UCS 1450 GB MLC Fusion ioDrive3
UCSC-F-FIO-1450M=
2
PCIE 1
PCIE 2
Not
applicable
2.0(2)
Half height
Cisco UCS 1150 GB MLC Fusion ioDrive3
UCSC-F-FIO-1150M=
2
PCIE 1
PCIE 2
Not
applicable
2.0(2)
Half height
