SANRAD V-Switch manual Exposing an iSCSI Target and LUN, Volume expose, New, Vol1, Lun

The first LUN assigned to an iSCSI target must be LU 0.

A LUN value cannot be larger than 255.

All CLI names and aliases are case sensitive.

A snapshot volume must be exposed on the same V-Switch as the source volume.

Exposing an iSCSI Target and LUN

To make a volume accessible to a host, you need to assign a LUN to it, attach the LUN to an iSCSI target and expose the target. The CLI command volume expose is used in two ways:

Create and expose a new target.

Expose an existing target.

The CLI command volume expose -newcreates a new iSCSI target, assigns a volume LUN and then exposes the new target.

After creating a target and LU0, you can add additional LUNs to the target using the CLI command volume expose (without the –newswitch).

volume expose

If you are working in a V-Switch cluster, each target and LUN must be configured on both V-Switches in the V-Switch cluster. For more information on V-Switch clusters, see “Introduction to V-Switch Clusters,” page 72.

If you add or modify identities on a target after its volumes have been exposed, the access rights will take effect only at the next login for each iSCSI initiator.

You need to define six parameters to create and expose an iSCSI target and volume LUN:

SWITCH	PARAMETER	DEFINITION	STATUS	EXAMPLE
-new	NEW TARGET	NEW ISCSI	OPTIONAL	No parameter
		TARGET TO CREATE		required
-vol	VOLUME ALIAS	ALIAS OF VOLUME	MANDATORY	Vol1
		TO CREATE LU0
		AND TARGET FOR
-ta	TARGET ALIAS	USER-ASSIGNED	MANDATORY	finance
		ALIAS OF TARGET
		TO CREATE
-lun	LU NUMBER	USER-ASSIGNED	MANDATORY	0
		LUN FOR	ON EXISTING
		EXPOSING VOLUME	TARGET
-tn	TARGET WWUI	USER-ASSIGNED	MANDATORY ON	sanrad.
		WORLD WIDE	A NEW TARGET	billing
		UNIQUE IDENTIFIER
		FOR THE TARGET

134 SANRAD V-Switch User Manual