SANRAD I3.1.1205 - Manual (Page 121)

Chapter 7: Volume Exposure and Security 7-3
10
1
2
4
n
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 7-1. 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.
1
0148
Ident A
wwui2
wwui1
wwui10
wwui9
wwui8
wwui7
wwui6
wwui5
wwui4
wwui3
Figure 7-2. Identity A’s iSCSI Initiators
In Figure 7-2, there are four iSCSI initiators in Identity A: WWUI 1, 2,5 and 8.