Abstract: A method, non-transitory computer readable medium, and apparatus that enhance management of backup data sets include receiving an operation on a region of a production data set. A corresponding region of a backup data set is marked as having a change state status until the received operation is completed on the region of the production data set and mirrored on a corresponding region of a backup data set.

Abstract: Multiple applications request data from multiple storage units over a computer network. The data is divided into segments and each segment is distributed randomly on one of several storage units, independent of the storage units on which other segments of the media data are stored. Redundancy information corresponding to each segment also is distributed randomly over the storage units. The redundancy information for a segment may be a copy of the segment, such that each segment is stored on at least two storage units. The redundancy information also may be based on two or more segments. This random distribution of segments of data and corresponding redundancy information improves both scalability and reliability. When a storage unit fails, its load is distributed evenly over to remaining storage units and its lost data may be recovered because of the redundancy information.