A storage system repair method, device, equipment and computer readable medium

By verifying and labeling the LP tree during catastrophic failures of the storage system, the online status of storage volumes and pools can be quickly restored, and the PL tree can be created, solving the problem of low efficiency in traditional repair processes and achieving rapid business recovery.

CN117271192BActive Publication Date: 2026-07-14INSPUR SUZHOU INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INSPUR SUZHOU INTELLIGENT TECH CO LTD
Filing Date
2023-09-28
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In the T3 recovery process during catastrophic failures, traditional storage systems suffer from low efficiency in pairing and repairing LP trees and PL trees, resulting in excessively long recovery times, impacting customer business and potentially causing major incidents.

Method used

By verifying the LP tree in the storage system, the target LP tree is obtained, and the addresses of LBAs in the data space are marked according to the preset labeling granularity to obtain the target data block. The data block is then fed back to the host to restore the storage volume and storage pool to the online state. Subsequently, the target data block is traversed to create the PL tree.

Benefits of technology

It shortened the repair time of the storage system, improved repair efficiency, ensured that business was restored in the shortest possible time, and reduced the losses caused by long repair times.

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Abstract

Embodiments of the present application provide a storage system repair method, device and equipment and a computer readable medium, relating to the technical field of storage, which comprises: in response to a storage system failure, checking a plurality of LP trees and obtaining a target LP tree; according to a preset annotation granularity, annotating the address of the corresponding LBA in the data space in the target LP tree to obtain at least one target data block containing annotated data, wherein the target data block is located in the data space, the preset annotation granularity is the size of the target data block, and the preset annotation granularity is greater than the address range of the LBA in the data space; feeding back the target LP tree to a host to restore the storage volume and storage pool to an online state; and traversing the target data block to create a PL tree corresponding to the target LP tree. The technical effect of shortening the storage system repair time can be achieved.
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