Storage Management System for Cloud Sub-Site Cost Reduction
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Solution Overview
Problem
Existing storage systems face high operational costs when implementing sub-sites in public clouds, as they incur charges based on server operational time, storage capacity, and other factors.
Innovation Solution
A storage system comprising a first storage apparatus for data storage, a recovery storage apparatus for storing recovery data, and a management apparatus that prepares a second storage apparatus, recovers and stores data using recovery data, and starts a second host based on control information, thereby reducing operational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sub-site is constructed in a public cloud with servers and storage apparatus running continuously, then business process recovery capability is ensured, but operational cost becomes expensive
Solution Approach 1:
The system performs preliminary actions by stopping the second host and second storage apparatus when not in use, and only activating them when disaster recovery is needed. The management apparatus monitors the operational state and triggers startup only when the first host detects a failure, ensuring resources are prepared in advance but not continuously consumed
Solution Approach 2:
The system dynamically adjusts the operational state of the sub-site resources based on actual needs. The second host and storage apparatus transition between stopped and operational states, allowing the system to adapt to different disaster recovery scenarios while optimizing resource utilization and reducing unnecessary operational costs
2Loss of energy
If the second host and second storage apparatus are kept stopped to reduce costs, then operational cost is reduced, but business process recovery time increases
Solution Approach 1:
The management apparatus is configured to quickly start the second host and second storage apparatus when needed, and the system maintains the capability for rapid activation through proper configuration and management, reducing the time penalty associated with cold startup
Solution Approach 2:
The first host provides feedback about its operational state to the management apparatus. When the first host detects a failure, it notifies the management apparatus, which then triggers the startup of the second host and storage apparatus, creating a responsive feedback loop that minimizes recovery time
Data Source
AI summary
A management server stops a sub-server in advance and prepares a sub-storage that operates in response to a request from the sub-server at the time of transition at which a business process of using data stored in a regular storage is performed in the sub-server. The management server recovers data using recovery data stored in an object storage and stores the data in the sub-storage and starts the sub-server.