Q-Logic FC0054607-00 A manual Configurable Driver Parameters, Driver Parameter Description

3–Configuration

Configuring the Driver Parameters

where <options> is one of the configurable parameters listed in Table 3-1 on page 3-8.

For example, the following command sets the maximum device queue depth reported by the QLogic to a value of 32:

#esxcfg-module -s ql2xmaxqdepth=32 qla2xxx

3.To update the ESX RAMdisk image, execute following command:

#esxcfg-boot -b

4.For the preceding changes to take effect, reboot the server as follows:

#reboot

NOTE:

All configuration changes made using the esxcfg-module-scommand are persistent, meaning that the configuration changes will be saved across system reboots.

Table 3-1lists alphabetically all the QLogic driver configurable parameters and provides a brief description of each.

Table 3-1. Configurable Driver Parameters

Driver Parameter	Description
ql2xallocfwdump	Option to enable allocation of memory for a firmware dump dur-
	ing adapter initialization. Memory allocation requirements vary by
	ISP type. 0 = memory not allocated (default).
ql2xcmdtimeout	Timeout value in seconds for scsi command. Default is 20.
ql2xenablemsi	Enables MSI-X/MSI interrupt scheme. Default is 0 = disable
	MSI-X/MSI; 1 = enable MSI-X/MSI.
ql2xexectuion_throttle	IOCB exchange count for adapter. Default is 0; set intended
	value to override firmware defaults.
ql2xextended_error_logging	Option to enable extended error logging. 0 = no logging (default);
	1 = log errors.
ql2xiidmaenable	Enables iIDMA settings. Default is 1 = perform iIDMA; 0 = no
	iIDMA.
ql2xintrdelaytimer	Waiting time for firmware before it generates an interrupt to the
	host to notify completion of request.
ql2xioctltimeout	Ioctl timeout value in seconds for pass-through commands.
	Default is 66.

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