HP StorageWorks XP Remote Web Console Software - Manual (Page 20)

Figure 3 LU path configuration in iSCSI environments
.
Use XP LUN Configuration and Security Manager Software to define paths between a single server
host and multiple LUs. In
Figure 3 , both hosts in the hg-lnx iSCSI target can access the three LUs.
Use XP LUN Configuration and Security Manager Software to define paths between multiple server
hosts and a single LU. In
Figure 3 , the LU identified by CU-LDEV number 00:00 is accessible from
both hosts belonging to the hg-lnx iSCSI target.
In Figure 3 , LUs associated with the hg-lnx iSCSI target are addressed by numbers 0 to 2. The LU's
address number is referred to as a logical unit number (LUN). When Continuous Access XP and other
optional programs manipulate LUs, the programs use LUNs to specify the LUs to be manipulated.
You can add, change, and delete LU paths when the system is operating. For example, if you add
new disks or server hosts to the array, you can add new LU paths. If you replace an existing server
host, you can delete LU paths corresponding to the host before replacing the host. You do not need
to restart the system when you use XP LUN Configuration and Security Manager Software to add,
change, and delete LU paths.
Overview of XP LUN Configuration and Security Manager Software 20