User's Manual

Module parameters 41
Module parameters
Using module parameters
The following table describes the module parameters you can set using the esxcfg-module command.
The remote option (--server) is only required for the vCLI.
Sample command:
esxcfg-module --server <server-name> iomemory-vsl -s '<parameter>=<value>'
You must reboot the ESX or ESXi system to enforce any parameter changes.
Module parameter Default (min/max) Description
auto_attach
1 1 = Always attach the device on startup.
0 = Do not attach the device on startup.
external_power_override*
No devices selected Allows selected devices to draw full power from
the PCIe slot. The <value> for this parameter is
a comma-separated list of adapter serial
numbers.
force_minimal_mode
0 1 = Force minimal mode on the device.
0 = Do not force minimal mode on the device.
parallel_attach
True 1 = Enable parallel attach of multiple drivers.
0 = Disable parallel attach of multiple drives.
tintr_hw_wait
0 (0, 255) Interval (microseconds) to wait between
hardware interrupts. Also known as interrupt
coalescing.
0 = Off.
*Use this parameter with care. For more information, see "Enabling PCIe power override (on page 23)."
Except for the external_power_override parameter, module parameters apply to all IO Accelerator
devices in the system.
To query the current module parameters, use the following command:
esxcfg-module --server <server-name> iomemory-vsl -g