Emulex 3.4 user manual Driver for VMware ESX Configuration Parameters

Table 10: lpfc Dynamic Parameters (Do not require a driver reload to change) (Continued)

Variable	Default	Min	Max	Comments
lpfc_use_adisc	0	0=Off	1=On	Sends ADISC instead of
				PLOGI for device discovery or RSCN.

Driver for VMware ESX Configuration Parameters

All HBA-specific parameters have an lpfcX_ prefix (where X is the driver instance number); e.g., setting lpfc0_lun_queue_depth= 20 makes 20 the default number of maximum commands which can be sent to a single logical unit (disk) for lpfc instance 0.

Dynamic parameters do not require the driver to be unloaded and reloaded for changes to take effect.

Table 11: Driver for VMware ESX Configuration Parameters

Variable	Default	Min	Max	Dynamic	Comments
lpfc_hba_queue_depth	8192	0	8192	Yes	Maximum number of FCP
					commands that can queue to an
					Emulex HBA.
lpfc_initiator_login	0	0	1	Yes	Enables logins to other virtual
					initiators.
lpfc_ack0	0	0=Off	1=On	No	Use ACK0 for class 2.
lpfc_automap	1	0=Off	1=On	No	Automatically assign SCSI IDs to
					FCP targets detected.
lpfc_check_cond_err	0	0=Off	1=On	Yes	Treat certain FCP check conditions
					as FCP RSP errors.
lpfc_cr_count	1	1	255	No	This parameter determines the
					values for I/O coalescing for
					cr_delay (msec) or cr_count
					outstanding commands.
lpfc_cr_delay	0	0	63	No	This parameter determines the
					values for I/O coalescing for
					cr_delay (msec) or cr_count
					outstanding commands.
lpfc_delay_rsp_err	0	0=Off	1=On	Yes	Treat FCP RSP errors like no-
					device-delay.
lpfc_discovery_threads	1	30	64	No	Specifies the maximum number of
					ELS commands that can be
					outstanding for a discovery.
lpfc_dqfull_throttle_up_inc	1	0	128	Yes	Amount to increment LUN queue
					depth each time.
lpfc_dqfull_throttle_up_tim	1	0	30	Yes	Time interval, in seconds, to
e					increment LUN queue depth.
lpfc_extra_io_tmo	0	0	255	Yes	Extra FCP cmd timeout when
					connected to a fabric (in seconds).

The HBAnyware Utility User Manual Page 92