Exagrid recently announced the new EX13000E which they claim is the “fastest system per TB” on the market. I am not sure how exactly which math they are using, but it is clear that they are off a bit. The Channel Register posted some comparisons showing Exagrid is slower than both Data Domain and Sepaton and said “The EX13000E is not the fastest deduplicating box in the industry by any means” (http://www.channelregister.co.uk/2011/05/24/exagrid_ex13000e/).
If you compare Data Domain and Exagrid head to head, you can see their claims break down even further. The Data Domain DD670 is almost 9tb usable and can ingest data at nearly 9tb/hr when using BOOST, and is all inline, not post process. This inline approach leads to faster time to recovery in the DR site because data doesn’t have to sit on disk waiting to be deduplicated before it is moved to the remote location. The Data Domain line supports very flexible N:N replication while the Exagrid supports only a Hub and Spoke approach. When scaling out the Exagrid solution, you add controller after controller in order to provide the performance required to drive the capacity. Data Domain on the otherhand already has all of the horsepower it needs, which allows you to scale by adding only additional capacity. The largest Exagrid system supports 130TB of capacity and can ingest at 24tb/hr. The largest Data Domain system on the other hand supports 570TB of capacity and can still ingest faster at over 26tb/hr.
Lastly, Exagrid has a price match program that I believe shows a level of desperation. It appears they are simply trying to buy your business. I know I have always found that I get what I pay for…and pricing hardware to simply move product doesn’t instill confidence in the the long term relationship I look for in a vendor.