3-54
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
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 3-9
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 3-54
.
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
