HSG80 ACS Solution Software V8.6 for IBM AIM Installation and Configuration Guide

Table Of Contents
Planning a Subsystem 121
NOTE: Compaq recommends that you provide access to only specific connections, even if there
is just one connection on the link. This way, if new connections are added, they will not have
automatic access to all units.
Worldwide Names (Node IDs and Port IDs)
A worldwide namealso called a node IDis a unique, 64-bit number assigned to a
subsystem prior to shipping. The node ID belongs to the subsystem itself and never
changes.
Each subsystems 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 1worldwide name + 1, for example
5000-1FE1-FF0C-EE01
Controller A and controller B, port 2worldwide name + 2, for example
5000-1FE1-FF0C-EE02
Use the CLI command,
SHOW THIS_CONTROLLER/OTHER_CONTROLLER to display the
subsystems 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.