Local Bunker System for Rapid Primary Site Recovery

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The delay in updating primary sites after failovers to remote secondary sites is significant due to the remote location of the secondary sites, leading to prolonged recovery times.

Innovation Solution

Implementing a system that replicates data changes from the remote secondary site to a local bunker system, allowing the primary site to update using the local bunker system's data, thereby bypassing direct restoration from the remote secondary site.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the primary site directly restores from the remote secondary site after failover, then data consistency is maintained, but recovery time is significantly prolonged due to remote location

Engineering Contradiction:

Improvedata consistencyVSAvoidrecovery time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent introduces a local bunker system as an intermediary between the remote secondary site and the primary site. During failover, the local bunker receives and stores data changes from the remote secondary site locally, then provides these changes to the primary site during recovery. This intermediary approach maintains data consistency while eliminating the time penalty of direct remote restoration.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The local bunker system preliminarily captures and stores data changes from the remote secondary site during the failover period. By pre-positioning the data changes locally before they are needed for recovery, the system eliminates the need for time-consuming data transfer during the critical recovery window, thus reducing recovery time while maintaining consistency.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If data is continuously replicated from the primary site to both local bunker and remote secondary site, then data safety is improved, but system complexity increases

Engineering Contradiction:

Improvedata safetyVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the backup system into two distinct components: a local bunker system and a remote secondary site. Each component has a specific role - the local bunker handles rapid recovery operations while the remote site provides long-term archival storage. This segmentation allows the system to achieve high data safety through multiple copies without requiring a single complex system to perform all functions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The local bunker system serves multiple functions: it acts as a real-time replica during normal operation, captures data changes during failover, and provides rapid recovery data during failback. This multi-functionality reduces the need for separate specialized systems, thereby managing complexity while maintaining data safety.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8677088B1Systems and methods for recovering primary sites after failovers to remote secondary sites

Publication Date: 2014.03.18 COHESITY INC

AI summary

A computer-implemented method for recovering primary sites after failovers to remote secondary sites may include: 1) identifying a primary system configured to replicate data to both a local bunker system and a remote secondary system, 2) failing the primary system over to the remote secondary system, 3) replicating, to the local bunker system, data changes made on the remote secondary system, and then 4) updating the primary system with the data changes stored on the local bunker system. Various other methods, systems, and computer-readable media are also disclosed.