System and method for data protection against power failure during sector remapping

Disclosed herein is a technique to protect sector remapped boundary data from corruption due to catastrophic errors such as loss of power in storage disks including SATA (Serial ATA) drives. Specially, one method is provided for protecting the boundary sector data from power failure through a data recovery mechanism, namely, a boundary sector table in which the boundary sectors are pre-stored in case any power failure or loss occurs during the sector remapped write operations. In connection with the boundary sector table stored in a reserved region of the storage disk, a boundary sector information index is provided in a bridge coupled to the disk, which serves as a key to identify and retrieve the needed boundary sector data from the table for corrupted data recovery.