Paul Kruschwitz’s Blog

Almost as difficult as explaining when to use affect versus effect in a sentence, I spend a lot of time explaining why it is difficult to accurately size a deduplication solution for a specific customer’s environment. The simple answer is, “the deduplication ratio will depend on your data and backup methods.”

Before we get into the ‘why’, let me clarify how deduplication effectiveness is measured.

The effectiveness of deduplication is quantified in two measures; The REPOSITORY deduplication ratio, and the DAILY deduplication ratio. (more…)