Option

Description

 

 

-e

Enumerates configuration parameter names and values.

 

 

-g <name>

Gets the configuration parameter.

-p <name>

Set and persist the configuration parameter.

-s <name>

Set the configuration parameter in memory only.

-V

Print verbose information.

-v

Print version information.

fio-config options

The following table describes the driver parameters you can set with the fio-configutility.

IMPORTANT: fio-configoptions must be entered in uppercase to function properly.

IMPORTANT: MSI (Message Signaled Interrupts) is enabled by default and it cannot be disabled using fio-config.

Option

Default

Description

 

 

(min/max)

 

 

 

 

 

 

AUTO_ATTACH

1 (0,1)

Always attach the device on driver load (1).

 

IODRIVE_TINTR_HW_WAIT

0 (0, 255)

Interval (microseconds) to wait between hardware

 

 

 

interrupts

 

FIO_EXTERNAL_POWER_OVERRIDE

No devices

Allows selected devices to draw full power from the

 

 

selected

PCIe slot. Where the <value> for this parameter is a

 

 

 

comma-separated list of adapter serial numbers.

 

 

 

 

 

FORCE_MINIMAL_MODE

0 (0,1)

Force minimal mode on the device (1), this

 

 

 

parameter is set to false (0) by default.

 

PARALLEL_ATTACH

0 (0,1)

Enable parallel attach of multiple devices (1), this

 

 

 

parameter is set to false (0) by default.

 

FIO_PREALLOCATE_MEMORY

0

For the selected device, preallocate all memory

 

 

 

necessary to have the drive usable as swap space.

 

 

 

For example:

 

 

 

fio-config /dev/fct0 -p

 

 

 

FIO_PREALLOCATE_MEMORY =

 

 

 

"1234,54321"

 

 

 

where "1234" and "54321" are serial numbers

 

 

 

obtained from fio-status.

 

WIN_DISABLE_ALL_AFFINITY

0 (affinity is

When WIN_DISABLE_ALL_AFFINITY is set to 0,

 

 

enabled)

the driver will enable interrupt and worker thread

 

 

 

affinity in the driver. When

 

 

 

WIN_DISABLE_ALL_AFFINITY is set to 1, the

 

 

 

driver will disable all affinity settings. This is an

 

 

 

override of any other affinity settings. The driver

 

 

 

must be reloaded for this parameter to take effect.

 

 

 

 

 

WIN_DISABLE_DEFAULT_NUMA_AFFINIT

0 (default;

When WIN_DISABLE_DEFAULT_NUMA_AFFINITY

 

Y

NUMA

is set to 0, during initialization, the driver will query

 

 

affinity is

the Windows® operating system for the affinity

 

 

enabled)

settings assigned to the adapter by the OS. This

 

 

 

setting is known as the "default NUMA affinity".

 

 

 

Utilities 44