HP XP Array Manager Software User Manual
Page 16
After server hosts are classified into host groups, you must associate host groups to logical volumes.
In
on page 16, 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.
Host group
Subsystem
Fibre
CL1-A(EF) (LUN Security:Enable)Target
00:hg-lnx(00[Standard])
lnx01(00003456ABCD1234)
lnx02(00004567ABCD2345)
01:hg-hpux(03[HP])
hpux01(0102030400000000)
hpux02(1020304000000000)
CL1-B(E8) (LUN Security:Enable)Target
00:hg-solar(09[Solaris])
solar01(0001AAAA00000000)
solar02(0002AAAA00000000)
LUN
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
LDKC:CU:L
00:00:00
00:00:01
00:00:02
Port
Host bus adapter
Selected LUNs: 0
Figure 1 LU Paths Configuration in a Fibre Channel Environment
LUN Manager lets you 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.
LUN Manager lets you 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
on page 16, 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 StorageWorks
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 the host. You do not
need to restart the system when you add, change, or delete LU paths with LUN Manager.
About LUN Manager Operations
16