Challenge with NetApp deduplication (ASIS)

An interesting aspect of NetApp’s primary dedupe (ASIS) came to light while talking with one of their customers the other day.  It’s one of those things that should have been obvious from the start, but I never really thought about it until this customer brought it up.
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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.

The Rehydration Myth

I think that the concept that deduplication vendors “rehydrate” data is completely wrong and needs to be abandoned.  This “rehydration” or “reduping” data is blamed for the penalty that some dedupe vendors have on reads, but I think the concept is completely incorrect.  Click Read More to see what I’m talking about.
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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.

The BD Event: 1, SNW:0

Anyone who attended SNW this year knows that it isn’t the show it used to be.  At the same hotel as usual, there were plenty of seats available at the bar, plenty at the Starbucks, and some very conspicous companies were absent from the entire ordeal.  The BD Event, however, was very different.  Cick Read More to see 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.

Crazy Pills

See, I told you NetApp wouldn’t match EMC’s offer!  What’s that?  They matched it?  To see what I think about that, click Read 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.

What a love triangle!

When NetApp made a $1.5B bid for Data Domain, I was shocked. When EMC announced a $1.8B bid to take the deal away from them, I almost hit the floor.  Click Read More to see 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.