SYSTEM AND METHOD FOR PERFORMING A MIRROR SET BASED MEDIUM ERROR HANDLING DURING A CONSISTENCY CHECK OPERATION ON A RAID 1E DISK ARRAY

摘要

A system and method for performing a mirror set based error handling during a consistency check operation on a RAID 1E disk array is disclosed. In one embodiment, in a method for performing a mirror set based medium error handling during a consistency check (CC) operation on a RAID 1E disk array, a read operation is performed on a current row. The RAID 1E disk array is formed using mirror sets having rows, where each mirror set includes a pair of disks, and the rows include at least one block in each of the pair of disks. A list of all medium errors found in the current row is formed. The medium errors found in the current row are grouped on mirror set basis and the medium errors that do not have a corresponding medium error in substantially same block in other disk in a mirror set are recovered.