HP StorageWorks HSG80 ACS Solution Software V8.8 for HP-UX Installation and Configuration Guide (AA-RV1FA-TE, March 2005)

Planning a Subsystem
62 HSG80 ACS Solution Software V8.8 for HP-UX Installation and Configuration Guide
Figure 19: Placement of the worldwide name label on the BA370 enclosure
Caution: Each subsystem has its own unique worldwide name (node ID). If
you attempt to set the subsystem worldwide name to a name other than the one
that came with the subsystem, the data on the subsystem is not accessible.
Never set two subsystems to the same worldwide name, or data corruption
occurs.
Unit Worldwide Names (LUN IDs)
In addition, each unit has its own worldwide name, or LUN ID. This is a unique,
128-bit value that the controller assigns at the time of unit initialization. It cannot
be altered by you but does change when the unit is reinitialized. Use the
SHOW
command to list the LUN ID.
1 Node ID
(Worldwide name)
2 Checksum
CXO6873B
WWN INFORMATION
P/N:
WWN:
Checksum:
NNNN – NNNN – NNNN – NNNN
NN
S/N:
1
2