SANRAD V-Switch manual 114

initiators. The default identity is assigned position 0, meaning it is the last scanned. Unlike user-created identities, the default identity cannot be uncoupled from a target. Its access can only be modified.

iSCSI	iSCSI
initiator	initiator
wwui1	wwui2
Vol 1	Vol 2
RW	RW
	Vol 3
	RW
	IP SAN

V-Switch

Target 1

Identity A

Def Ident

Target 2	Identity B
	Def Ident

Ident A wwui1

RW

Default

all

NA

iSCSI Target 1

wwui3

Vol 1

LU0

	Ident B
	wwui2
	RW
	Default
	all
	NA
iSCSI Target 2
	wwui4
Vol 2	Vol 3
LU0	LU1
	10156n

Figure 61. Modifying Default Identities

In Figure 61, the default identities for Target 1 and Target 2 have been modified to not accessible (NA) for all initiators. Remember that the default identity is in position 0 so it is the last position scanned by the V-Switch.

Target 1 is coupled with Identity A with read-write (RW) access to Identity A iSCSI initiators, meaning WWUI1.

Target 2 is coupled with Identity B with read-write (RW) access to Identity B iSCSI initiators, meaning WWUI2.

When iSCSI initiator WWUI1 logs in to Target 1, the V-Switch first scans Identity A and finds the initiator listed there. The scan stops and the initiator is granted read-write access to Target 1’s underlying volume, Volume 1.

114 SANRAD V-Switch User Manual