Data backup and recovery in a data processing system

Details Data backup and recovery in a data processing system Data backup and recovery in a data processing system

1992-05-28

1995-01-10

Canney, Vincent P.

Boots, shoes, and leggings

395600, 3642682, 3642821, G06F 1120

Patent

active

053815459

ABSTRACT:
A data processing system for managing stored data is described. A log recording incremental updates to the data is provided for data recovery purposes in the event of a system failure. A backup copy of at least a portion of the stored data can be made without closing that portion for update. Any in-progress modifications at the time the backup is taken are allowed for by calculating a recovery point before the time of the backup, from which point recovery is to be performed using the recovery log. The recovery point depends at least in part on the start time of the oldest in-progress data file update.

REFERENCES:
patent: 4686620 (1987-08-01), Ng
patent: 4751702 (1988-06-01), Beier et al.
Data Recovery in IBM Database 2 by R. A. Crus, IBM Systems Journal, vol. 23, #2, 1984.
Incremental Data Base Log Image Copy by R. A. Crus et al., IBMTDB vol. 25, #7B, Dec. 1982.
Checkpoint Copy of Active/Interactive Data with Impercise Checkpoint Time by N. K. Ouchi, IBMTDB vol. 26 #3A, Aug. 1983.

Affiliated with

Also associated with

Rating

Data backup and recovery in a data processing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data backup and recovery in a data processing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data backup and recovery in a data processing system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-857752