Emulex 3.4 user manual LPFC.conf Parameters

Table 3: LPFC.conf Parameters (Continued)

Property Name	Scope	Default	Min	Max	Dynamic	Comments
lun-queue-depth	Global	30	1	128	No	The driver uses this value as
						the default limit for the number
						of simultaneous commands to
						issue to a single logical unit
						on a single target on the loop.
						A single logical unit will never
						be sent more commands than
						allowed by lun-queue-depth;
						however, less may be sent
						when sd-max-throttle or
						tgt-queue-depth is reached for
						the entire target.
msi-mode	Controller	2	0	2	No	This variable controls whether
	Specific					LPFC uses MSI-based
						interrupts or legacy interrupts.
						If set to 2 (default), the driver
						will try to use multiple
						message MSI. If multiple
						message MSI is not possible
						due to an OS or hardware
						limitation, then the driver will
						attempt single message MSI.
						If single message MSI fails,
						then the driver will attempt
						legacy interrupts. A value of 0
						disables MSI and the driver
						will use legacy interrupts.
network-on	Controller	0	0	1	No	This variable controls whether
	Specific					LPFC provides IP networking
						functionality over FC. This
						variable is a Boolean: when
						zero, IP networking is
						disabled; when non-zero, IP
						networking is enabled.
no-device-delay	Global	1	0	30	Yes	This variable (0 to 30
						seconds) determines the
						length of the interval between
						deciding to fail an I/O because
						there is no way to
						communicate with its
						particular device (e.g., due to
						device failure or device
						removal) and actually failing
						the command. A value of zero
						implies no delay whatsoever.
						This delay is specified in
						seconds. A minimum value of
						1 (1 second) is recommended
						when communicating with any
						Tachyon based device.

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