Data recovery method in storage medium, data recovery system, and related device

A data recovery system, comprising:

• an extraction module configured to extract, when a write failure occurs during writing data into a storage medium, original data corresponding to the data failed to be written and original verification data in an original RAID stripe to which the original data belongs;
• a calculation module configured to perform a calculation on the original data and the original verification data by using a preset verification algorithm, and obtain new verification data;
• a recording module configured to form a new RAID stripe by using valid data other than the original data in the original RAID stripe and the new verification data, and record data relations in the new RAID stripe;
• and
• a recovery module configured to recover, when a reading failure occurs during reading the data in the new RAID stripe, according to the data relations in the new RAID stripe, the data failed to be read.

A non-transitory computer-readable storage medium, storing a computer program, wherein the computer program, when executed by a processor, implements operations comprising:

• extracting, when a write failure occurs during writing data into the non-transitory computer-readable storage medium, original data corresponding to the data failed to be written and original verification data in an original RAID stripe to which the original data belongs;
• obtaining new verification data by performing a calculation on the original data and the original verification data by using a preset verification algorithm;
• forming a new RAID stripe by using valid data other than the original data in the original RAID stripe and the new verification data, and recording data relations in the new RAID stripe;
• and
• recovering, when a reading failure occurs during reading the data in the new RAID stripe, according to the data relations in the new RAID stripe, the data failed to be read.