JPH0556149A - File update method in exchange system - Google Patents

Abstract

PURPOSE:To eliminate the need of converting a data base by means of in an exchange system a maintenance in an exchange system person and to prevent the change of the data base in a conversion work period from being eliminated owing to the update of a file. CONSTITUTION:An operation system is operated by software in a generation n (S1). The software of a generation n+1 is stored in a standby system, and the operation system and the standby system are switched, whereby the software of the generation n+1 which is aware of the data base structure of the generation n and the generation n+1 is started (S2). The data base of the generation n is converted and the data base of the generation n+1 is generated (S3). The exchange system is reconstructed by the data base of the generation n+1 so as to start an operation (S4).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file updating method in a storage program control type exchange system, and more particularly to a file updating method when a database structure differs for each software file.

[0002]

2. Description of the Related Art Conventionally, in the file update when the database structure is different for each software file,
It was necessary to convert the database from the old structure to the new structure. The old structure database was output on the old software file, the output was converted to create the new structure database, and this database and the new software file were integrated to create the current station file.

[0003]

In the conventional file updating described above, a new database is created from the output of the old database with a new software file, and the new database created as a result uses a new generation software file. There is. In this method, there is a time lag from the output of the old database to the use of the new generation software by the new database, and the database changes and the data registered and canceled by the subscriber within this time are erased. There was a drawback.

[0004]

A file updating method in a switching system according to the present invention is a file updating method in a storage program control type switching system consisting of software and a database for each of an active system and a standby system. While operating with the software of the generation n, the software of the generation n + 1 is accommodated in the standby system, the active system and the standby system are switched, and the software of the generation n + 1 that knows the database structure of both the generation n and the generation n + 1 is activated. , Generation n database is converted to generation n
This is a configuration in which a +1 database is created, and after the generation n + 1 database is created, the switching system is reconstructed using this generation n + 1 database and operation is started.

[0005]

The present invention will be described below with reference to the drawings.

When the software file is updated in the operating exchange system, the software file of the generation n and the software file of the generation n + 1 are temporarily accommodated in the exchange system.

FIG. 1 is a diagram for explaining a file updating procedure according to an embodiment of the present invention.

First, in step 1 (S1), the switching system is operated by the software of the generation n, and the generation n is accommodated in both the operating system and the standby system.

Next, the software of generation n + 1 is accommodated in the backup system (S2). This software has a function of converting the database of generation n into the database of generation n + 1.

Next, the file update is executed. The software of the generation n + 1 is started by switching the active system and the standby system. First, the generation n database is converted to create a generation n + 1 database (S3) After the generation n + 1 database is created, the switching system is reconfigured and operation is started using this database (S3).
4).

Since the software of the generation n + 1 is in a position to know both the database structure of the generation n and the database structure of the generation n + 1, it is possible to perform the conversion from the generation n to n + 1. When developing a new generation software, a function for converting an old generation database to a new generation database is added to the software.

[0012]

As described above, according to the present invention, the automatic conversion of the database eliminates the need for the maintenance person to perform the conversion work of the database, and the database change during the conversion work period is erased by the file update. There is an effect that it will not be done.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a file updating procedure according to an embodiment of the present invention.

Claims (1)

[Claims] 1. A file updating method in a storage program control type exchange system comprising software and a database for each of an active system and a standby system, wherein the active system is operating with software of generation n, and the standby system has software of generation n + 1. And switches between the active system and the standby system, activates the software of the generation n + 1 that knows the database structure of both the generation n and the generation n + 1, converts the database of the generation n, and creates the database of the generation n + 1. Then, after the database of the generation n + 1 is created, the switching system is reconstructed by the database of the generation n + 1 and the operation is started.