DISK RECONSTRUCTION METHOD AND DEVICE THEREFOR

摘要

Provided is a disk reconstruction method. The method comprises: when a fault exists in a first member disk in a redundant array of independent disks (RAID) group, restoring data of the first member disk according to data of a second member disk other than the first member disk in the RAID group, and storing the restored data in a target disk; before the fault recoveryof the first member disk, replacing the first member disk with the target disk containing the restored data as a member disk in the RAID group (S105); and after the fault recoveryof the first member disk, performing corresponding reconstruction processing according to the restored first member disk (S107). Also provided is a disk reconstruction device. The method and device can reduce data loss and quickly restore a service of a user.