APPARATUS, SYSTEM, AND METHOD FOR BAD BLOCK REMAPPING

摘要

An apparatus, system, and method are disclosed for bad block remapping. A bad block identifier module 202 identifies data blocks on a solid-state storage element 702 as bad blocks. A log update module 204 writes a location of each bad block identified by the bad block identifier module 202 into each of two or more redundant bad block logs. A bad block mapping module 206 accesses a bad block log during a start-up operation to create in memory a bad block map. The bad block map includes a mapping between the bad block locations in the bad block log and a corresponding location of a replacement block for each bad block location. Data is stored in each replacement block instead of the corresponding bad block. The bad block mapping module 206 creates the bad block map using one of a replacement block location and a bad block mapping algorithm.