Parallel Backup Storage for Point-in-Time Recovery Gaps
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Solution Overview
Problem
Current data backup systems face gaps in point in time recovery ranges for full backups, which can span days, leading to reduced restore point optimization and complications in recovery point expiry and restores due to cross dependency between full and log recovery points.
Innovation Solution
A data backup system that enables parallel execution of full backups and archive log backups, utilizing a unique log backup storage space initialized before full backups to perform simultaneous data and log backups, ensuring consistent recovery points and reducing cross dependency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full backup and archive log backup are performed sequentially, then storage space can be reused, but point in time recovery gaps occur and recovery point optimization is reduced
Solution Approach 1:
The patent divides the backup storage into separate dedicated spaces: a full backup storage space for full backup data and a unique log backup storage space for archive log backups. This segmentation allows both backup types to proceed simultaneously without interfering with each other, eliminating the sequential dependency that causes recovery gaps and enabling continuous point in time recovery.
2Device complexity
If full backup and archive log backup are performed sequentially, then storage management is simpler, but cross dependency between recovery points creates complications
Solution Approach 1:
By segmenting storage into dedicated full backup and log backup spaces, the patent eliminates cross-dependency between recovery points. Each backup type has its own isolated storage domain, simplifying recovery point management and removing the operational complications that arise from intertwined full and log backup dependencies.
Solution Approach 2:
The patent introduces a unique log backup storage space as an intermediary structure that facilitates independent log backup operations. This intermediary storage domain allows archive log backups to proceed autonomously without affecting full backup operations, thereby simplifying recovery point expiry management and restore operations.
3Quantity of substance
If full backup spans multiple days, then complete data backup is achieved, but recovery point optimization is reduced due to gaps
Solution Approach 1:
The patent enables continuous backup operation by running full backup and archive log backup simultaneously in parallel. The unique log backup storage space ensures that log backups continue uninterrupted during full backup operations, eliminating the gaps that occur with sequential processing and maintaining continuous point in time recovery coverage.
Solution Approach 2:
Segmenting the backup process into parallel full backup and log backup operations with dedicated storage spaces allows both to proceed concurrently. This segmentation eliminates the sequential bottleneck and ensures that recovery points are generated continuously without gaps, optimizing restore point availability throughout the backup window.
Data Source
AI summary
A data backup system configured to enable point in time recovery is presented. The data backup system is configured to enable point in time recovery using a full backup storage space and a unique log backup storage space thereby enabling parallel full backups and archive log backups. A related method is also presented.