Method for managing database recovery from failure of a shared s

Details Method for managing database recovery from failure of a shared s Method for managing database recovery from failure of a shared s

1991-11-08

1994-01-18

Heckler, Thomas M.

Excavating

371 12, 364DIG1, 3642671, 3642821, 3642852, G06F 1130, G06F 1216, G06F 1540

Patent

active

052806111

ABSTRACT:
In a multi-system data sharing complex, a database system can write updated pages to a shared electronic store for a fast write. Other database systems can obtain pages written to the shared store for further modification without the pages first being written to stable storage. However, pages are eventually written to the stable storage in a castout process. Recovery of a database from failure of the shared store is bounded by determination of a recovery boundary which, when applied to the union of database system transaction logs, establishes a point in front of which are found log records of modifications to pages which were in the shared store when it failed. These log records are applied to page versions obtained from stable storage to recover from failure of the shared store.

REFERENCES:
patent: 4480304 (1984-10-01), Carr et al.
patent: 4945474 (1990-07-01), Elliott et al.
patent: 5043866 (1991-08-01), Myre, Jr. et al.
patent: 5170480 (1992-12-01), Mohan et al.
Research Disclosure, May 1986, No. 265, Kenneth Mason Publications Ltd., England, Improved Write-Ahead Logging.
Research Report, RJ 6649, Aries: A Transaction Recovery Method Supporting Fine-Granularity Locking and Partial Rollbacks Using Write-Ahead Logging, Co. Mohan, pp. 1-58.
Distributed Data Bases, Bruce G. Lindsay, "Single and Multi-Site Recovery Facilities", pp. 261-265.
Data Recovery in IBM Database 2, R. A. Crus, IBM Systems Journal, vol. 23, No. 2, 1984, pp. 178-188.
Journal of Systems Management, Information Access Company; Association for Systems Management 1990, vol. 41, No. 1, p. 33, Current Trends in Transaction Processing Systems, Kumar, Vijay.

Affiliated with

Also associated with

Rating

Method for managing database recovery from failure of a shared s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for managing database recovery from failure of a shared s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for managing database recovery from failure of a shared s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1142717