IBM is expanding its capabilities in the data storage sector by reaching an agreement to acquire FilesX, a data storage software firm.

FilesX, which is privately held, has offices in Massachusetts and Israel.

Financial terms were not disclosed.

IBM recently acquired Arsenal Digital Solutions, which also focuses on data storage solutions and services. Arsenal is based in Cary. N.C.

The FilesX technology, which is patented, will be incorporated into IBM’s Tivoli Storage Manager product suite. FilesX works with clients to provide data and application recovery.

"The FilesX acquisition would complement IBM’s vision of enterprise data protection by adding critical capabilities for remote offices, delivering continuous data protection for applications and servers, and supporting business user needs with nearly instantaneous recovery of data," said Al Zollar, the general manager for Tivoli software. "It would also reinforce IBM’s mid-market strategy by adding a simple and easy to use full data protection solution — one that also is attractive to enterprise remote offices and departmental situations."

FilesX has more than 100 customers.