The OneCommand Utility User Manual
Page 80
Setting Driver Parameters
The Driver Parameters tab for adapters and hosts enable you to modify driver parameters for a specific
adapter or all adapters in a host.
For example, if you select a host in the discovery-tree, you can globally change the parameters for all
adapters in that host. If you select an adapter port in the discovery-tree, you can change the
lpfc_use_adisc, lpfc_log_verbose and the lpfc_nodev_tmo parameters for only that adapter.
For each parameter, the Driver Parameters tabs show the current value, the range of acceptable values,
the default value, and the activation requirement. You can also restore parameters to their default settings.
You can apply driver parameters for one adapter to other adapters in the system using the Driver
Parameters tab, thereby simplifying multiple adapter configuration. See “Creating a Batch Mode Driver
Parameters File” on page 84 for more information.
Setting Driver Parameters for a Single Adapter
To change the driver parameters for a single adapter:
1.
Select Host or Fabric view.
2.
In the discovery-tree, select the adapter port whose parameters you wish to change.
3.
Select the Driver Parameters tab. The parameter values for the selected adapter are displayed.
Note: The Linux 2.6 kernel only supports setting some of the driver parameters for
individual adapters. Some driver parameters must be applied to all adapters
contained in the host. See the Emulex Driver for Linux User Manual for more detail.
Note: For all compatible Linux versions: If you change driver parameters using the
OneCommand Manager application or hbacmd utilities and you want these changes
to be permanent and persist across system reboots, you must create a new ramdisk
image. The ramdisk image is used when the kernel is initialized during system
startup, and loads the LPFC driver with the updated driver parameters.
To create a new ramdisk you can use the LPFC driver's lpfc-install script. Refer to the
“Creating a New Ramdisk” section of the Emulex Driver for Linux User Manual for
instructions.
Note: For VMware ESX 3.5 and VMware ESX 4.0: If you change driver parameters using
the OneCommand Manager application or hbacmd utilities and you want these
changes to be permanent and persist across system reboots, you must create a new
ram disk image. The ram disk image is used when the kernel is initialized during
system startup and loads the LPFC driver with the updated driver parameters.
