By Jim Hankins

If you remember back in my  HP Deduplication - Part 1 post when we announced our new deduplication products back in June, I said that the deduplication ratio you can expect from a product can vary based on a number of factors. We now can share with you deduplication test results from our D2D4000 Backup System conducted by a 3rd party, Binary Testing Ltd.

Binary Testing conducted testing that backed up and deduplicated data for file serving, SQL and Exchange environments with various data change rates over a simulated three month backup period. The results can be found here: http://h71028.www7.hp.com/ERC/downloads/4AA2-0799ENW.pdf 

Again, your mileage may vary but this report should give you some idea of what's possible if your business runs these types of applications.