HP Array Controller HSG V8.7 Software - Manual (Page 108)

3–30 HSG80 User’s Guide
Figure 3–12 LUN Presentation Using Unit Offset on a Per-Host
Basis
Assigning Access Paths
The HSG80 subsystem allows the user to specify unit access privileges
to limit host access. This feature is defined on a unit-by-unit basis.
You can enable host access to a unit by mapping the unit accessible
through the specified host paths. (A path is the logical connection
between the host and the controller.) The path is referenced by the
name attached to the logical connection. Once the unit is set for access
through a path, the access privilege is defined.
Paths may be automatically added to the system through the host fibre
channel login process or manually with the ADD command. See
Appendix B, “CLI Commands,” for more information about this
procedure.
Note Even when hosts are automatically entered, user intervention is
still recommended to set a meaningful connection name.
Controller
Units
HOST 1
on Port 1
Dev Offset: 0
HOST 2
on Port 1
Dev Offset: 20
HOST 3
on Port 2
Dev Offset: 100
LUN 0
LUN 1
LUN 2
LUN 3
LUN 20
LUN 21
LUN 0
LUN 1
LUN 0
LUN 1
LUN 2
LUN 30
LUN 31
D0
D1
D2
D3
D20
D21
D100
D101
D102
D130
D131
CXO6455A