The company also launched the 5.0 version of DeltaStor, its deduplication software. New to the 5.0 version is a GUI that lets administrators select specific applications to dedupe, such as Exchange or Office files. Sepaton charges $2,500 per useable Tbyte for a perpetual license.
Sepaton's dedupe process saves data to disk, then looks for duplicate bytes. This is known as post-processing. Other vendors deduplicate as data is being written to disk. Another option, typically used in branch and remote offices, looks for duplicates on the source machine, thereby avoiding sending extraneous copies of data across the WAN to the home site.
Data deduplication is a hot topic in the storage industry. At last month's EMC World show in Las Vegas, EMC announced 3D technology to deduplicate data on storage systems. This complements its Avamar backup technology that deduplicates data at the source.
For more on data dedupe technology, this article by InformationWeek's Howard Marks provides an excellent overview.