Categories
Backup Deduplication Replication

Deduplication ratios and their impact on DR cost savings

There is an interesting blog discussion between Dipash Patel from CommVault and W. Curtis Preston from Backup Central and TruthinIT regarding the increasing or decreasing benefits of deduplication ratios. They take different perspectives on the benefits of increasing deduplication ratios and I will highlight their points and add an additional one to consider.

Patel argues that increasing deduplication ratios beyond 10:1 provides only a marginal benefit. He calculates that going from 10:1 to 20:1 results in only a 5% increase in capacity efficiency and suggests that this provides only a marginal benefit. He adds that vendors who suggest that a doubling in deduplication ratios will result in a doubling cost savings are using a “sleight of hand.” He makes an interesting point, but I disagree with his core statement that increasing deduplication ratios beyond 10:1 provides only marginal savings.

Categories
Marketing

Blog commenting

W. Curtis Preston the author of the Mr. Backup Blog recently voiced his frustration with certain bloggers censoring visitor comments. He was annoyed that some folks from EMC configured their blogs for comment moderation (all comments must be approved before they appear on the site) and used the power to delete certain responses. He contrasted this to NetApp whose blogs are not moderated. (As a point of clarification, AboutRestore.com’s comments are not moderated; reader comments are posted immediately.) Whether you believe in comment moderation or not, at least these blogs all provide a mechanism for the visitor to respond.

Categories
General

AboutRestore.com recognition

W. Curtis Preston the author of the Mr. Backup Blog recently posted an article about the blogs that he frequents. I was honored that he recognized AboutRestore.com along with blogs from other major vendors.

Curtis mentioned his frustration with the comment filtering policies on some blogs and I wanted to clarify AboutRestore.com’s policy. (A synopsis of the policy is contained in the disclaimer in the sidebar.) Comments are not moderated; whatever you post appears on the site instantly. I have little interest in censorship; however, I reserve the right to delete comments containing abusive or personal attacks. I hope I never have to use my power of deletion, but as Uncle Ben said to Peter Parker/Spiderman:

With great power comes great responsibility.

Now back to regularly scheduled programming…..