Option

Default

Description

 

(min/max)

 

 

 

 

 

 

After the affinity is queried correctly, the driver sets

 

 

the affinity of the adapter interrupt and associated

 

 

worker threads to the default operating system

 

 

setting. This action has the effect of setting the

 

 

affinity of the interrupt and worker threads to all

 

 

processors on a single NUMA node in the system.

 

 

When WIN_DISABLE_DEFAULT_NUMA_AFFINITY

 

 

is set to 1, the driver will ignore the affinity settings

 

 

assigned to the adapter by the OS. The driver must

 

 

be reloaded for this parameter to take effect.

 

 

 

FIO_AFFINITY

N/A

FIO_AFFINITY is a list of <affinity

 

 

specification> triplets to specify the affinity

 

 

settings of all adapters in the system. Each item in

 

 

the triplet is separated by a comma, and each

 

 

triplet set is separated by a semicolon. For more

 

 

information on using this parameter, see "NUMA

 

 

configuration (on page 67)."

 

 

 

fio-detach

Description

Detaches and removes the corresponding /dev/fctx IO Accelerator block device. The fio-detachcommand waits until the device completes all read/write activity before executing the detach process. The command displays a progress bar and percentage as it completes the process.

NOTE: Before using this utility, be sure that the device you want to detach is not currently mounted and in use.

Syntax

fio-detach <device> [options]

where <device> is the name given to the IO Accelerator during the installation process. The syntax is /dev/fctx, where x indicates the PCIe bus number where you installed the IO Accelerator. For example, the name /dev/fct4 refers to the IO Accelerator device installed in PCIe Bus 4 in your Windows® operating system. To view this bus number, use the IO Accelerator Management Tool or fio-status.

You can specify multiple IO Accelerator devices. For example, /dev/fct1 /dev/fct2 indicates the devices installed in PCIe Buses 1 and 2 in your Windows® operating system.

Options

Option

Description

 

 

-f

Force: Causes an immediate detach (does not save metadata).

 

 

-i

Immediate: Causes a forced immediate detach (does not save metadata). This will fail if the device

 

is in use by the OS.

-q

Quiet: Disables the display of the progress bar and percentage.

Utilities 45