HP StorageWorks HSG80 ACS Solution Software V8.8 for Linux X86 Installation and Configuration Guide (AA-RV1LA-TE, March 2005)

Planning a Subsystem
52 HSG80 ACS Solution Software V8.8 for Linux X86 Installation and Configuration Guide
Worldwide Names (Node IDs and Port IDs)
A worldwide name—also called a node ID—is a unique, 64-bit number assigned
to a subsystem prior to shipping. The node ID belongs to the subsystem itself and
never changes.
Each subsystem’s node ID ends in zero, for example 5000-1FE1-FF0C-EE00. The
controller port IDs are derived from the node ID.
In a subsystem with two controllers in transparent failover mode, the controller
port IDs are incremented as follows:
■ Controller A and controller B, port 1—worldwide name + 1, for example
5000-1FE1-FF0C-EE01
■ Controller A and controller B, port 2—worldwide name + 2, for example
5000-1FE1-FF0C-EE02
Use the CLI command,
SHOW THIS_CONTROLLER/OTHER_CONTROLLER to display the
subsystem’s worldwide name.
Restoring Worldwide Names (Node IDs)
If a situation occurs that requires you to restore the worldwide name, you can
restore it using the worldwide name and checksum printed on the sticker on the
frame into which the controller is inserted.
Figure 16 shows the placement of the worldwide name label for the Model 2200
enclosure, and Figure 17 shows the placement for the BA370 enclosure.
Figure 16: Placement of the worldwide name label on the Model 2200 enclosure
1 Node ID
(Worldwide name)
2 Checksum
WWN INFORMATION
P/N:
WWN:
Checksum:
NNNN – NNNN – NNNN – NNNN
NN
S/N:
1
2