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1.5 DATABASES ON THE MUXserver 100
Two databases are defined in MUXserver 100 memory: the permanent data-
base, and the operational database. Both contain characteristics for the server
and its attached terminals. The
serw~r
software uses these characteristics to
carry out its functions.
When a terminal user logs in, the permanent characteristics for that terminal
are copied from the permanent database to the operational database. They then
become the terminal's operational characteristics.
When you initialize the server, the permanent server characteristics are copied
to the operational database. These characteristics are then the operational char-
acteristics for the server.
When users modify port characteristics using the SET PORT command, these
changes are only temporarily stored in the operational characteristics database.
The permanent database itself remains unchanged when terminal users log in
and when you initialize the server. However, you can change the characteristics
in the permanent database with the DEFINE PORT and DEFINE SERVER
commands.
When the MUXserver 100 arrives at your facility, the permanent database con-
tains the factory specified characteristics for the server and the terminals. They
are copied to the operational database when you first install and initialize the
server. After modifying the permanent database, you can restore the factory
specified values by using the software reset procedure (refer to Chapter 2,
Section 2.9 (SETTING CHARACTERISTICS TO FACTORY
SPECIFICATIONS
n.
CHAPTER 1 THE MUXserver 100 ENVIRONMENT
11
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