Dell Brocade Adapters - Manual (Page 236)

208 Brocade Adapters Installation and Reference Manual
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Storage driver-level parameters
A
Examples
Following is an example to set the LUN queue depth.
esxcfg-module -s 'lun_queue_depth=1' bfa
Following is an example to disable FDMI.
esxcfg-module -s 'fdmi_enable=0 bfa' bfa
Important notes
Observe these notes when modifying driver configuration parameters:
• The esxcfg-module reads and updates from the file /etc/vmware/esx.conf.
• Editing this file directly is not recommended.
• Be careful not to overwrite the existing options. Always query the existing configuration
parameter value before changing it using the following command:
esxcfg-module -q
Windows driver configuration parameters
The BFA driver configuration parameters are located under the registry hive:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\bfad\Parameters\Device
Table 35 describes the Windows configuration parameters.
Managing Windows driver configuration parameters
To change any driver configuration parameter, use the Registry Edit tool (regedt32) or the BCU
drvconf --key command. For details on using these commands, refer to the Brocade Adapters
Administrator’s Guide.
Important notes:
• We recommend using the applicable BCU command to dynamically update the value (where
available), rather than reloading the driver.
• Disabling the devices will disrupt adapter connectivity.
• To find out if the driver has unloaded successfully after disabling the Brocade HBA or CNA
devices in the Device Manager, run any BCU command. This should result in an “Error: No
Brocade HBA Found” or “Error: No Brocade CNA Found” message. If the driver did not unload
for some reason, the BCU command should complete normally.
TABLE 35 Windows driver configuration parameters
Parameter Default Value Notes
fdmi_enable 1 Enables or disables Fabric Device Management Interface (FDMI)
registrations. To disable, set this parameter to 0.
bfa_lun_queue_depth 32 Maximum SCSI requests per LUN. This parameter is passed to the
SCSI layer during SCSI transport attach
ioc_auto_recover 1 Auto recoveries IOC (IO Controller) on heartbeat failure.
rport_del_timeout 90 Delay in seconds, after which an offline remote port will be deleted.
msix_disable 1 Disable MSIx interrupt (and use line-based INTx).