DATA RECOVERY METHODS AND DEVICES FOR BAD SECTOR OF LOGICAL UNIT

摘要

Embodiments of the present invention provide data recovery methods and devices for a bad sector of a logical unit. One of the methods comprises: a host querying a bad sector of a logical unit from a disk array; the host receiving identification information, sent by the disk array, of the bad sector of the logical unit; and the host recovering, according to the identification information of the bad sector of the logical unit, data stored in the bad sector of the logical unit. In the embodiments of the present invention, the host can actively recover data stored in a bad sector of a logical unit, so that the problem that data stored in a bad sector of a logical unit cannot be passively recovered until access of the host to the bad sector of the logical unit is triggered by a service in the prior art is avoided, and the recovery timeliness is enhanced.