System, method and program for backing up a computer program

• US 20050125464A1
• Filed: 12/04/2003
• Published: 06/09/2005
• Est. Priority Date: 12/04/2003
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Kline, Christopher N.
• Granted Patent: US 7,127,480 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/1438 Restarting or rejuvenating
• CPC Class Codes: Y10S 707/99955 Archiving or backup

Abstract

A system and computer program product for backing up a program and a plurality of user instances of the program. First program instructions backup definitions of queues used by the program instances. Second program instructions backup authorizations for the queues. Third program instructions backup a plurality of program-instance configuration files for the plurality of program instances, respectively. Fourth program instructions backup a configuration file for the program. Also disclosed is a method and program product for backing up a user program instance which has locked a queue definition file containing definitions of queues and authorizations for accessing the queues, and which has not locked a configuration file identifying the user program instance. A backup program queries the user program instance for the definitions of the queues and the authorizations for the queues such that the user program instance retains the lock on the queue definition file. In response, the user program reads the definitions and authorizations from the queue definition file and furnishes them to the backup program. The backup program directly reads the configuration file without querying the user program for the configuration file and without locking the configuration file.

Claims

1. A computer program product for backing up a program and a plurality of user instances of said program, said program product comprising:

a computer readable medium;

first program instructions to backup definitions of queues used by the program instances;

second program instructions to backup authorizations for said queues;

third program instructions to backup a plurality of program-instance configuration files for said plurality of program instances, respectively; and

fourth program instructions to backup a configuration file for said program; and

wherein said first, second, third and fourth program instructions are recorded on said medium.

2. A program product as set forth in claim 1 wherein said queues are message queues.

3. A program product as set forth in claim 1 further comprising fifth program instructions to backup user exits for said program and program instances;

and wherein said fifth program instructions are recorded on said medium.

4. A program product as set forth in claim 1 wherein said first, second, third and fourth program instructions are executed as a continuous program flow such that said backups are substantially consistent with each other.

5. A program product as set forth in claim 1 wherein said first program instructions request said definitions of said queues from a program instance, and said second program instructions request said authorizations from said program instance.

6. A program product as set forth in claim 1 wherein said program is a middleware program.

14. A method as set forth in claim 13 wherein said configuration file specifies a name and location of said user program instance.

7. A computer system for backing up a program and a plurality of user instances of said program, said system comprising:

means for backing up definitions of queues used by the program instances;

means for backing up authorizations for said queues;

means for backing up a plurality of program-instance configuration files for said plurality of program instances, respectively; and

means for backing up a configuration file for said program.

8. A system as set forth in claim 7 wherein said queues are message queues.

9. A system as set forth in claim 7 further comprising means for backing up user exits for said program and program instances.

10. A system as set forth in claim 7 wherein all of said means are initiated at nearly a same time such that the respective backups are substantially consistent with each other.

11. A system as set forth in claim 7 wherein the queue definition backup means request said definitions of said queues from a program instance, and the queue authorization backup means request said authorizations from said program instance.

12. A system as set forth in claim 7 wherein said program is a middleware program

13. A method for backing up a user program instance which has locked a queue definition file containing definitions of queues and authorizations for accessing the queues, and which has not locked a configuration file identifying the user program instance, said method comprising the steps of:

a backup program querying said user program instance for the definitions of said queues and the authorizations for said queues such that said user program instance retains the lock on said queue definition file, and in response, said user program reading said definitions and authorizations from said queue definition file and furnishing them to said backup program; and

said backup program directly reading said configuration file without querying said user program for said configuration file and without locking said configuration file.