Storage Device Direct Backup Recovery to Reduce Network Load
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Solution Overview
Problem
Existing data recovery methods in storage devices often result in increased network load and performance degradation due to unrecoverable data failures.
Innovation Solution
A method and storage device that directly receive backup data from an external backup storage device without passing through the host device, using backup storage information to perform data recovery operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup data is received through the host device during data recovery, then data recovery can be performed, but network load increases and performance degradation occurs
Solution Approach 1:
The patent extracts the backup data reception function from the host device and assigns it directly to the storage device. The storage device now has the capability to directly receive backup data from the backup storage device through the network, separating this function from the host device's data recovery process and eliminating the performance bottleneck.
Solution Approach 2:
The storage device acts as an intermediary between the backup storage device and the recovered data. Instead of the host device mediating all data transfers, the storage device directly receives backup data packets from the backup storage device and processes them locally, reducing network load on the host device.
2Reliability
If traditional data recovery methods are used, then data can be restored from backup, but network load increases due to host device involvement
Solution Approach 1:
The storage device performs self-service by directly receiving and processing backup data without requiring the host device to mediate the data transfer. The storage device autonomously handles the recovery process by receiving backup data packets directly from the backup storage device through the network.
Solution Approach 2:
The host device is extracted from the backup data reception process. The storage device takes over the function of receiving backup data directly from the backup storage device, eliminating the unnecessary network traffic through the host device and reducing overall network load.
Data Source
AI summary
A method of recovering data in a storage device is provided. The method includes: receiving backup storage information associated with a backup storage device from a host device, both the host device and the backup storage device being external to the storage device, and the backup storage device being configured to store backup data corresponding to first data; performing a data read operation on the first data; based on an unrecoverable data failure occurring while reading the first data, directly receiving the backup data corresponding to the first data from the backup storage device based on the backup storage information; and performing a data recovery operation for the first data based on the backup data.