Q-Logic 8100 SERIES manual Using the Utility, TGT-LUN Discovery Utility Command Line Options

8–Configuring FCoE in a Linux Environment Using the QLogic Linux Utilities

Using the Utility

This utility has a command line interface and a menu interface.

Command Line Interface

To start the Dynamic TGT-LUN Discovery command line interface, issue the following command followed by one or more command line options:

#./ql-dynamic-tgt-lun-disc.sh <command line options>

Table 8-11lists the Dynamic TGT-LUN Discovery utility command line options and their abbreviations.

Table 8-11. TGT-LUN Discovery Utility Command Line Options

Option	Description
(Abbreviation)
--allow-lip (-al)	Issue the loop initialization processor (LIP) when required. By
	default, the LIP is not issued, even if it is required for scanning
	LUNs. If the utility does recognize that a LIP is needed, this
	option is ignored.
--current-luns (-cl)	Display current LUNs on the system
--extended-scan (-e)	Rescan the LUNs to identify attribute changes in existing LUNs.
	You can combine this option with the --max-lun, --scan, and
	--scan--refresh options.
--help (? or -h)	Print the help text.
--interactive	Opens the Dynamic TGT-LUN Discovery utility menu interface.
	Refer to “Menu Interface” on page 8-44.
--max-lun (-m)	Set the maximum LUNs to be scanned; the default is 256
	LUNs.
--proc (-p)	Use the proc file system to perform LUN scanning on the 2.6
	kernel. RHEL 5 is a 2.6 kernel-based Linux distribution.
--scan (-s)	Rescans all the devices connected to the QLogic adapter. If you
	omit all command line options, this is the default.
--scan --refresh	Rescans all the devices connected to the QLogic adapter, and
(-s-r)	removes LUNs that no longer exist. Do not attempt to use this
	option on the adapter port with active I/O operations, because it
	removes the existing LUNs before rescanning.

Table 8-12show a list of tasks and the commands that perform them.

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