High-Speed Virtual Drive Restore for Immediate Host Access
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Solution Overview
Problem
In Active/Passive Disaster Recovery systems, the startup of computer resources for cloud storage systems to make them available to a host after a disaster occurs is time-consuming due to the need to reduce operating costs by not operating these resources until use is necessary, leading to prolonged recovery times.
Innovation Solution
An operation management system and method that stores restored backup data in a high-speed virtual drive and migrates it to a logical volume while maintaining accessibility, allowing immediate host access during the migration process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If computer resources are not operated until start of use to reduce operating costs, then operating costs are reduced, but recovery time until system is available to host is prolonged
Solution Approach 1:
The storage system is segmented into multiple virtual drives with different performance characteristics and cost structures. During disaster recovery, only the necessary high-speed virtual drive is activated instead of the entire storage system, enabling faster recovery while maintaining cost efficiency during normal operation.
Solution Approach 2:
The system dynamically adjusts its configuration during disaster recovery by activating high-speed virtual drives only when needed for critical data restoration, then transitioning to standard virtual drives for ongoing operations. This dynamic resource allocation reduces recovery time while controlling operating costs.
2Speed
If high-speed virtual drive is used to store restored backup data, then access speed is improved, but storage cost increases
Solution Approach 1:
The system dynamically switches between high-speed and standard virtual drives based on operational needs. During disaster recovery, high-speed virtual drives are activated for critical data access. After recovery, the system transitions to standard virtual drives for ongoing operations, optimizing the balance between performance and cost.
Solution Approach 2:
Storage resources are segmented into different performance tiers. The high-speed virtual drive is used only for specific critical operations during recovery, while standard virtual drives handle general storage needs. This segmentation allows the system to achieve high access speeds when needed without incurring continuous high storage costs.
Data Source
AI summary
An operation management system, when restoring backup data to a logical volume in a virtual drive, stores the restored backup data in an external volume of a high-speed virtual drive that is able to be accessed at higher speed than the virtual drive to control a restore computer resource so that the restored data is able to be accessed, and migrates the restored data from the external volume of the high-speed virtual drive to the logical volume of the virtual drive while maintaining a state where the data restored in the external volume of the high-speed virtual drive is accessible.