RAID stripe repairing method and device, equipment, storage medium and program product

By recording pre-embedded information in RAID data blocks and constructing multi-level page table comparison mapping relationships, the limitations of traditional RAID repair methods are overcome, enabling broader fault repair and more efficient data recovery.

CN121387183APending Publication Date: 2026-01-23DAWNING INFORMATION IND (BEIJING) CO LTD +2
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Patent Information

Application Number
CN202511432131.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

Traditional RAID repair methods cannot effectively address complex phenomena such as stripe duplication, data block duplication, and garbage data caused by multi-node concurrency, network transmission errors, network latency, and system failures in distributed systems. They have limited application scenarios and insufficient repair efficiency and accuracy.

Method used

Pre-embedded information, including block identifier, stripe identifier, and data write timestamp, is recorded in the RAID data blocks. By deduplication and building a multi-level page table to compare the actual and preset mapping relationships, stripe repair is performed to repair abnormal stripes and data blocks.

Benefits of technology

It expands the application scenarios of RAID repair, improves repair efficiency and accuracy, reduces the risk of data loss, and ensures fast and stable data recovery.

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Abstract

The invention relates to an RAID stripe repairing method and device, equipment, a storage medium and a program product. Pre-embedded information is recorded in data blocks of stripes of the RAID, and the pre-embedded information recorded in each data block at least comprises a block identifier of the data block, a stripe identifier of the stripe to which the data block belongs and a data disk falling timestamp of the data block; the stripe repairing method of the RAID comprises the following steps: performing duplicate removal processing on each data block according to pre-embedded information of each data block of the RAID to obtain a target data block; comparing the actual mapping relationship corresponding to the target data block with a preset mapping relationship between a block identifier and a stripe identifier stored in the metadata of the RAID; wherein the actual mapping relationship is a mapping relationship between a block identifier and a stripe identifier in the pre-embedded information of the target data block; and according to a comparison result, performing stripe repair on the RAID. By adopting the method, the application scene of RAID repair can be expanded, and the efficiency and accuracy of RADI strip repair are improved.
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