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Recently, I’ve been reading a lot about "High frequency trading" (HFT). It seems to aid in security trading in the US by enabling high-speed frequency trading using high-spec computers. This brought to mind the de-duplication function within Data Domain, which also relies on CPU spec and can store a lot of data with very small disk drives.

The reason why Data Domain can store so much data with small disk drives is that Data Domain systems de-duplicate our customers’ data prior to storing it to their disk drives, to reduce the write data. The foundation for the de-duplication “Stream Informed Segment Layout (SISL)” enables Data Domain systems to perform 99% of the de-duplication processing in CPU and RAM. So, the de-duplication needs CPU resource instead. Fortunately, over the last 20 years, CPUs have improved in speed by a factor of millions following Moore’s Law, while disks have improved by about 10x. This means that future Data Domain systems will continue to realize dramatic improvements in speed and scalability as future CPUs are used in new Data Domain systems. As new technology is introduced, many of our systems will enable you to replace the controller with a next generation model, while leaving all the backup data in place. This investment protection ensures you can significantly improve backup performance and scalability without disrupting operations.

Having the above benefit, since 2004, Data Domain systems have increased 175-times in throughput and 450-times in capacity and EMC expects this trajectory to continue over time.




Hiroki Kobayashi

IT Social Engagement

Follow us @EMCSupport


Filtering Downloads Results

Posted by GeorgeS Jun 18, 2015

Did you know there is a “newish” view in the downloads area making it easier and faster to find your content?  While leveraging EMC Online Support’s “Support by Product” pages you can find your content faster using the new content groupings or “buckets”.  This blog will provide some tips and tricks to help you find relevant content from the Downloads page.


Once on the Support by Product page for your product, choose “Downloads” and you will see the list of downloads specific to that product with additional filtering located on the left-hand side.

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Choose the appropriate filtering on the left side to reduce the results to a manageable number.

download filtering blog2.PNG.png

Since hardware products have no version, (as in the example below), there will be no filtering on the left hand side which can result in a lot of results. However, utilizing the content groupings by “Download Type” on the Downloads page will allow you to get to the most relevant content quickly.  Simply expand the grouping that interests you and you will get to your download faster with few results to scroll through.

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Online Support Downloads is a unified, support-focused search. Try it and post your feedback or questions as comments to this post.


George Sanderson

Online Support Service Center SME

Follow us @EMCsupport

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