Why global dedupe matters





Note to Readers: I have updated thoughts on this topic and you can see them here.

My previous post on dedupe performance illustrated the impact that global dedupe has on the effective performance of different dedupe appliances.  I received a lot of comments from vendors that didn’t have global dedupe saying one of two things.  One thing they would say is that the vendors that claimed to have global dedupe didn’t really have it.  I know too much to believe that.  The other thing they’d say is that global dedupe wasn’t as important as I was making it out to be.  Well, that’s definitely not the case, and that’s what this post is all about.  Click Read More to see why I think global dedupe is critical for larger environments.

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----- Signature and Disclaimer -----

Written by W. Curtis Preston (@wcpreston). For those of you unfamiliar with my work, I've specialized in backup & recovery since 1993. I've written the O'Reilly books on backup and have worked with a number of native and commercial tools. I am now Chief Technical Architect at Druva, the leading provider of cloud-based data protection and data management tools for endpoints, infrastructure, and cloud applications. These posts reflect my own opinion and are not necessarily the opinion of my employer.

Performance Comparison of Deduped Disk Vendors

[This article was slightly updated May 7, 2009.  New comments are in brackets.]

This blog entry is, to my knowledge, the first article or blog entry to compare the performance numbers of various [target] dedupe vendors side by side.  I decided to do this comparison while writing my response to Scott Waterhouse’s post about how wonderful the 3DL 4000 is, but then I realized that this part was enough that it should be in a separate post.  Click Read More to see a table that compares backup and dedupe performance of the various dedupe products.

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----- Signature and Disclaimer -----

Written by W. Curtis Preston (@wcpreston). For those of you unfamiliar with my work, I've specialized in backup & recovery since 1993. I've written the O'Reilly books on backup and have worked with a number of native and commercial tools. I am now Chief Technical Architect at Druva, the leading provider of cloud-based data protection and data management tools for endpoints, infrastructure, and cloud applications. These posts reflect my own opinion and are not necessarily the opinion of my employer.

Two cloud backup services shutting down

As I’m generally a fan of cloud backup services for the home user (and for some corporate users), it is sad that stories are reporting that both HP Upline and Yahoo! Briefcase are shutting down at the end of this month.  Click Read More to know more.
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----- Signature and Disclaimer -----

Written by W. Curtis Preston (@wcpreston). For those of you unfamiliar with my work, I've specialized in backup & recovery since 1993. I've written the O'Reilly books on backup and have worked with a number of native and commercial tools. I am now Chief Technical Architect at Druva, the leading provider of cloud-based data protection and data management tools for endpoints, infrastructure, and cloud applications. These posts reflect my own opinion and are not necessarily the opinion of my employer.