APC iSCSI SATA II - Manual (Page 55)

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3.6.5 Logical Unit
Enter “Logical unit” function to view the status of attached logical unit number of
each VD.
User can attach LUN by clicking the “ ”. Select the VD to attach
in the “VD” field. In the “Host” filed, enter the iSCSI node name for access control, or
use the default wildcard “*”, which means every host can access the volume. Choose
LUN number and permission, then click “ ”.
LUN operations description:
Attach Attach a logical unit number to a Virtual disk.
Detach Detach a logical unit number from a Virtual disk.
The matching rules of access control are inspected from top to bottom in sequence.
For example: there are 2 rules for the same VD, one is “*”, LUN 0; and the other is
“iqn.host1”, LUN 1. Another host “iqn.host2” can login successfully because it matches
the rule 1.
The access will be denied when there is no matching rule.