×

Method for determining execution of backup on a database

  • US 7,421,460 B2
  • Filed: 05/01/2003
  • Issued: 09/02/2008
  • Est. Priority Date: 11/20/2002
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method performed by computer instructions recorded on a computer readable medium for determining execution of backup of a database in a database management system comprising:

  • receiving a preset threshold value representing an acceptable condition for a processing amount for executing the backup;

    calculating a predicted processing value representing an amount of processing in a time frame required for the backup, said predicted processing value based at least in part on a real-time approximate expression derived from received amounts of processing;

    comparing said predicted processing value with said preset threshold value, and if said predicted processing value is smaller than said preset threshold value, judging that the backup is executable;

    comparing said predicted processing value with said preset threshold value, and if said predicted processing value is not smaller than said preset threshold value, judging that the backup is not executable;

    calculating a subsequent predicted processing value representing an amount of processing in a time frame required for the backup when the backup is judged to be not executable, said subsequent predicted processing value based at least in part on a real-time approximate expression derived from received amounts of processing; and

    repeating comparison of said subsequent predicted processing value with said preset threshold value until the backup is judged to be executable.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×