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Chapter 7: Volume Exposure and Security 109
10124n
iSCSI Target 3
wwui3
Vol 3 Vol 4
LU0 LU1
Vol 2
LU0
iSCSI Target 2
wwui2
Vol 1
LU0
iSCSI Target 1
wwui1
V-Switch
Figure 53. iSCSI Target Access
Once a volume has a LUN and is attached to a target, it is accessible to iSCSI
initiators. Each initiator can access, read and write into the volume.
Identities
To allow selective iSCSI initiator access to iSCSI target volumes, the V-
Switch uses identities to define pools of initiators. An identity is a user-
defined list of iSCSI initiators. An identity can contain from one to multiple
initiators, with each initiator having a unique WWUI.
10148
Ident A
wwui2
wwui1
wwui10
wwui9
wwui8
wwui7
wwui6
wwui5
wwui4
wwui3
Figure 54. Identity A’s iSCSI Initiators
In Figure 54, there are four iSCSI initiators in Identity A: WWUI 1, 2,5 and
8.