in a slot that is not rated to provide 55W of power, your server hardware could experience a power drag.
•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. To determine the total PCIe slot power available for the new server, consult the manufacturer.
Enabling the override parameter
1.Use one of the following methods to determine the serial number of each device to be installed in a compatible slot:
oEnter the
fio-status
...
Adapter: Dual Controller Adapter
External Power: NOT connected
PCIe Power limit threshold: 24.75W Connected ioMemory modules: fct2:
fct3:
In this example, 1149D0969 is the adapter serial number.
If you have multiple IO Accelerator devices installed on your system, use the
oInspect the adapter serial number labels on the IO Accelerator devices to determine the serial numbers. However, HP recommends confirming that each serial number is an adapter serial number by running the
2.To set the module parameter, edit
options iomemory-vsl external_power_override=<value>
Where the <value> for this parameter is a
1149D0969,1159E0972,24589
3.To enforce any parameter changes, you must reboot or unload and then load the drivers.
Common maintenance tasks
The following are the most common tasks for maintaining your IO Accelerator device using
Maintenance 37