Announcing a Winter Corporation Paper About Oracle Exadata Storage Server

WinterCorporation has posted a paper covering a recent Exadata proof of concept testing exercise. Highlights of the paper are evidence of concurrent moderately complex queries being serviced by Exadata at advertised disk throughput rates. The paper can be found at the following link:

Measuring the Performance of the Oracle Exadata Storage Server

Quotable Quotes
I’d like to draw attention to the following quote:

14 Gigabytes per second is a rate that can be achieved with some conventional storage arrays — only in dedicated large-scale enterprise arrays, that would require multiple full-height cabinets of hardware – and would therefore entail more space, power, and cooling than the HP Oracle Database Machine we tested here. Additionally, with established storage architectures, Oracle cannot offload any processing to the storage tier, therefore the database tier would require substantially more hardware to achieve a rate approaching 14 GB/second.

Yes, it may be possible to connect enough conventional storage to drive query disk throughput at 14GB/s, but the paper correctly points out that since there is no offload processing with conventional storage the database grid would require substantially more hardware than is assembled in the HP Oracle Database Machine. One would have to start from the ground up, as it were. By that I mean a database grid capable of simply ingesting 14GB/s would have to have 35 4Gb FC host bus adaptors. That requires a huge database grid.

If I could meet the guys (that would be me) that worked on this proof of concept I’d love to ask them what storage grid processor utilization was measured at the point where storage was at  peak throughput and performing the highest degree of storage processing complexity.  Now that would be a real golden nugget.  One thing is for certain, there was enough storage processor bandwidth to perform the Smart Scans which consist of applying WHERE predicates, column projection and performing bloom filtration in storage. Moreover, the test demonstrated ample storage processor bandwidth  to execute Smart Scan processing while blocks of data were whizzing by at the rate of 1GB/s per Oracle Exadata Storage Server. Otherwise, the paper wouldn’t be there.

Maybe 1.0476 processors per hard drive ( 176:168  )will become the new industry standard for optimal processor to disk ratio in DW/BI solutions.

4 Responses to “Announcing a Winter Corporation Paper About Oracle Exadata Storage Server”

  1. 1 Niall Litchfield February 4, 2009 at 9:23 am

    I think we should be aiming for 1.618 processors per drive myself (or possibly the other way around), then we’d be golden.

  2. 2 Curt Monash February 4, 2009 at 7:21 pm


    I could remind you of the historical prominence of the Golden Ratio in Sybase’s nautilus-shell graphics — but that would just be Mean!


  1. 1 Winter Corporation on Exadata | DBMS2 -- DataBase Management System Services Trackback on February 4, 2009 at 1:54 am
  2. 2 Oracle Exadata Storage Server and Oracle Database Machine Related Posts « Everything Exadata Trackback on February 23, 2009 at 9:02 pm

Leave a Reply

Please log in using one of these methods to post your comment: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

EMC Employee Disclaimer

The opinions and interests expressed on EMC employee blogs are the employees' own and do not necessarily represent EMC's positions, strategies or views. EMC makes no representation or warranties about employee blogs or the accuracy or reliability of such blogs. When you access employee blogs, even though they may contain the EMC logo and content regarding EMC products and services, employee blogs are independent of EMC and EMC does not control their content or operation. In addition, a link to a blog does not mean that EMC endorses that blog or has responsibility for its content or use.

This disclaimer was put into place on March 23, 2011.

Enter your email address to follow this blog and receive notifications of new posts by email.

Join 2,890 other followers

Oracle ACE Program Status

Click It

website metrics

Fond Memories


All content is © Kevin Closson and "Kevin Closson's Blog: Platforms, Databases, and Storage", 2006-2015. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Kevin Closson and Kevin Closson's Blog: Platforms, Databases, and Storage with appropriate and specific direction to the original content.

%d bloggers like this: