Storage System Cloud Backup Path Selection
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Solution Overview
Problem
Existing storage systems face challenges in reliably and efficiently backing up on-premise data to public cloud storage services due to instability and unreliability of internet-based data transfers and the inefficiency of HTTP-based communication protocols for large-volume data transfers.
Innovation Solution
A storage system comprising a first and second storage device forming a remote replication pair, managed by an integrated management device that selects the optimal logical volume for backup based on network conditions, ensuring efficient data transfer to a public cloud storage service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data is transferred over the Internet using HTTP protocol, then accessibility and ease of operation are improved, but reliability and transfer speed deteriorate due to public network instability and protocol overhead
Solution Approach 1:
The patent introduces a gateway as an intermediary component that mediates between the storage device and cloud storage service. The gateway establishes a dedicated communication line (such as Direct Connect) between the on-premises data center and the cloud provider's data center, bypassing the public Internet for data transfer. This intermediary infrastructure ensures reliable and efficient data backup while maintaining the ease of operation through centralized management interfaces.
2Ease of operation
If data is transferred over the Internet using HTTP protocol, then accessibility is improved, but transfer speed deteriorates due to network congestion and protocol overhead
Solution Approach 1:
The gateway serves as an intermediary that enables high-speed data transfer through dedicated communication infrastructure. By establishing a direct private connection between the storage device and cloud storage service, the system eliminates Internet congestion and HTTP protocol overhead, achieving significantly faster backup speeds while maintaining operational simplicity through the gateway's management interface.
3Reliability
If backup is performed during synchronization, then data consistency is improved, but backup time increases due to network transfer requirements
Solution Approach 1:
The system performs preliminary actions by establishing the dedicated communication infrastructure and synchronization mechanisms before actual backup operations. The gateway pre-configures the direct connection between storage devices and cloud services, and pre-establishes data synchronization protocols. This preliminary setup enables subsequent backup operations to proceed efficiently with guaranteed data consistency, reducing overall backup time while maintaining reliability.
Data Source
AI summary
To back up stored data of a storage device installed on-premise to a storage service provided by a public cloud more reliably and efficiently. A storage system according to the invention includes a storage device having first storage logical volumes (LDEVs), and a storage device having second storage LDEVs. When stored data of a first LDEV and stored data of a second LDEV are synchronized with each other, network conditions in a transfer path from the storage device to the public cloud and in a transfer path from the storage device to the public cloud are observed. The first LDEV or the second LDEV is selected as a backup source based on the network conditions.