Or, does deduplication give you what you want?
I thought it would be an interesting exercise to try to correlate the voting in my poll (in the right hand column) with the actual results achieved by deduplication users. This should give us some indication of whether the technology is meeting the expectations of users.
So, after 199 votes, the results are in. The results were pretty consistent by geographic region, with about 2/3 of the votes coming from the USA (which pretty closely mirrors world-wide adoption of deduplication technologies).
The ratio is what users believe is required for the technology to cost justify itself versus other backup solutions, the percentages are how many people held that belief.
In other words, 17.6% of voters believe that unless deduplication gives them capacity savings of 50:1 or better, they are not interested.
Now, lets look at what results the technology is actually delivering according to a Forrester survey:
Notably, only 5% are getting less than 10:1. What does this show? Well, the 17.6% of people that are looking to achieve 50:1 to justify the technology are unlikely to be happy--only 14% of users are getting better than 20:1. On the other hand, if your expectations are more modest, in the 10:1 to 20:1 range, then it appears that 86% of users are getting deduplication results in this range. If we exclude the "unknowns" then it looks like about 95% of users are getting 10:1 or better.
Or lets put this all another way: 82% of users don't believe they need to see any better than 20:1 deduplication ratios to cost justify the technology. 95% of them will achieve these type of results.
Given that the same survey showed that only 7% of users have adopted deduplication technology, and that only 22% are piloting or evaluating it, it is clear that the vast majority of users still stand to benefit from evaluating and implementing the technology. As vendors, we have only begun to scratch the surface.
Note: the results of the first poll are from a long-running survey on this weblog. The results of the second poll are from a commissioned study conducted by Forrester Consulting on behalf of HP in December 2008.