IBM has acquired Diligent Technologies for an undisclosed sum.
Diligent is known for its de-duplication technology, a technique for saving storage space by eliminating redundant data, such as multiple copies of the same email attachment within an email archive. The company's ProtecTIER product employs an in-line de-duplication engine that does the work as data is brought into a system, not after the fact.
Diligent's technologies and its workers will be brought under IBM's system storage business unit within the systems and technology group.
The buy marks the third storage-related grab by IBM in the past few months, following its moves to acquire XIV and FilesX.