glb_obj.txt(4)
NAME
glb_obj.txt − file specifying the object UUID of the Global Location Broker
SYNOPSIS
/etc/ncs/glb_obj.txt (Apollo Domain/OS workstations at SR10.2 or later)
/etc/ncs/glb_obj.txt (HP-UX systems and other UNIX systems)
ncs$exe:glb_obj.txt (VMS systems)
0s1b_obj.txt (MS-DOS systems)
DESCRIPTION
The Global Location Broker (GLB) is an object identified by a Universal Unique Identifier (UUID). This UUID has a default value. The glb_obj.txt file allows you to override the default value by specifying a different GLB object UUID for a particular host.
The glb_obj.txt file is used only in special configurations that require several disjoint GLB databases (each of which is possibly replicated). In most networks and internets, there is only one GLB database (possibly replicated), and hosts do not need to have a glb_obj.txt file.
If a host has a glb_obj.txt file, the UUID in the file identifies the GLB object to which that host will direct lookups and updates. If the host runs a GLB daemon (glbd or nrglbd), the UUID also identifies the GLB object managed by that daemon, and the daemon will accept lookups and updates only for that object. By specifying different GLB object UUIDs on different sets of hosts, you can partition a network or internet into Location Broker "cells".
Location Broker cells have independent GLB databases. Each cell can be serviced by one glbd, one nrglbd, or a set of glbd replicas. All hosts in a cell use the same GLB object UUID. Cells need not correspond in any way to physical or logical network topology.
Managing NCS Software describes how to set up a configuration that uses Location Broker cells.
A glb_obj.txt file consists of one line containing the textual representation of a UUID, such as is generated by the uuid_gen utility. The contents of glb_obj.txt are identical on all hosts in a cell.
If a host does not have a glb_obj.txt file, it will use the default value for the GLB object UUID.
EXAMPLES
A typical glb_obj.txt file resembles the following:
437f28e72000.0d.00.00.fb.40.00.00.00
SEE ALSO
Hewlett-Packard Company — HP-UX Release 8.05: June 1991