HP StorageWorks XP Remote Web Console Software User Manual
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1A and three Windows hosts are connected to port 1B, you cannot register all five Windows hosts
in one host group. You must register the first two Windows hosts in one host group and then register
the remaining three Windows hosts in another host group.
After server hosts are classified into host groups, you must associate host groups with logical
volumes. In
, the host group hg-lnx is associated with three logical volumes (00:00:00,
00:00:01, and 00:00:02). LU paths are defined between the two hosts in the hg-lnx group and
the three logical volumes.
Figure 1 LU Paths Configuration in a Fibre Channel Environment
Use LUN Manager to define paths between a single server host and multiple LUs. In
each of the two hosts in the host group hg-lnx is able to access the three LUs.
Use LUN Manager to define paths between multiple server hosts and a single LU. In
the LU identified by the LDKC-CU-LDEV number 00:00:00 is accessible from the two hosts that
belong to the hg-lnx host group.
In
, the LUs associated with the hg-lnx host group are addressed by numbers 0000 to
0002. The address number of an LU is referred to as LUN (logical unit number). When HP XP
Continuous Access Software and other program products 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 in operation. For example, if new
disks or server hosts are added to your storage system, you can add new LU paths. If an existing
server host is to be replaced, you delete the LU paths that correspond to the host before replacing
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About LUN Manager Operations