Patent ID: 8719235

Claim:
A non-transitory computer-readable medium storing computer-executable instructions that when executed by a computer control the computer to perform a method, the method comprising: accessing a de-duplication data set, where the de-duplication data set includes a set of sub-blocks produced by a de-duplication process, an index produced by the de-duplication process, where the index stores index entries related to members of the set of sub-blocks, and re-creation information produced by the de-duplication process, where the re-creation information stores data for re-creating a larger data block from two or more sub-blocks in the set of sub-blocks; identifying a de-duplication attribute associated with the de-duplication data set; determining a tape-specific layout for at least a portion of the de-duplication data set based, at least in part, on the de-duplication attribute and on a buffer scheme associated with a de-duplication apparatus that will access the de-duplication data set; and controlling a tape drive to write at least a portion of the de-duplication data set to a first tape according to the tape-specific layout.