On Monday Sepaton, Inc. will announce DeltaStor, its deduplication software offered as an option for the company S2100-ES2 Virtual Tape library.
Sepaton will announce DeltaStor at Symantec VISION in San Francisco. At the event Sepaton is going to demo this new ContentAware application.
"The reason we call our applications ContentAware is that as data comes into the tape library we capture metadata about that data" explains Linda Mentzer VP of marketing for Sepaton.
"We work very differently from any of the competitors" - Mentzer adds - "to avoid slowing down backups we do data deduplication after the backup is complete".
Another major differentiator is that DeltaStor deduplication compares the content of each file with a previous version as opposed to comparing the ash keys of file fragments as other vendors do.
"We keep the most recent file as reference and create pointers to the byte differences. We can do the same also for databases." Mentzer says.
DeltaStor gives customers also the option to verify the integrity of deduplicated data before eliminating redundant files.
Mentzer suggests that using DeltaStor customers will reduce the size of backup sets 25 to 1, but they can attain higher ratios using also Lempel-Ziv, a conventional compression application bundled with Sepaton appliances.
Being triggered by file attributes, DeltaStor will not deduplicate some obvious redundancies, such as files with same content but different file names. By contrast, ash key based solutions can address those redundancies.
However, Mentzer doesn't seem concerned: "We work equally well with both full and incremental backups, but some of our competitors quote two different [compression] numbers for incremental and full backups."
Sepaton will license DeltaStor in 10TB increments at a price averaging less than $1 per GB.
DeltaStor should be available in Q4 to customers using Veritas, IBM or EMC- Legato backup applications. Support for other backup software should follow in 2007.
Posted by Mario Apicella on May 5, 2006 05:58 AM
