System News
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Articles for the keywords: ZFS Dedup
21 May 2011 On ZFS Dedup Internals [24176]
Joerg Moellenkamp Compiles a List

Anyone with questions about ZFS Dedup Internals should have a look at the lengthy cheat sheet Joerg Moellenkamp has compiled which he shares with readers that deals with " ... some implications of the implementation," rather than the basic deduplication function itself. The cheat sheet covers such aspects of dedup as checksums; deduplication tables (DDTs); ZFS Attribute Processors (ZAPs); memory allocation; the preferred use of SSDs as opposed to disk; asynchronous writes; pools, and so forth. Have a look; print it out.
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17 Mar 2011 Sun ZFS Storage Appliance Deduplication Design and Implementation Guidelines [24002]
Jeff Wright Explains how Reductions in Physical Space can Be Had Without Diminishing Performance

This paper by Jeff Wright describes the technical aspects of the Sun ZFS Storage Appliance deduplication feature and how to apply this feature to solve common IT storage challenges. Among the aspects of the subject that Wright considers are:

  • Improving Storage Efficiency with Compression and Deduplication
  • Data Deduplication in the Sun ZFS Storage Appliance
  • Application Guidelines for Deduplication
  • Performance Guidelines for Deduplication
  • Known Issues and Limitations

Storage system deduplication combined with data compression provides a compelling and effective solution for increasing efficiency.
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31 Dec 2010 100 Most Popular Articles of 2010 [23804]
1036 Articles were Posted in Volumes 143 through 154

These are the 10 most popular articles that were posted in 2010:

  • Oracle's Hardware and Systems Support Policies (2010-04-07)
  • Oracle's Plans for Sun Products, Technologies (2010-02-04)
  • Choosing SPARC or Intel Processors (2010-01-22)
  • Oracle-Sun and Hitachi Data Systems End Reseller Agreement (2010-03-04)
  • Sun's Niagara 3 (2010-02-25)
  • Tutorial on IP Multipathing (IPMP) (2010-02-04)
  • In the Linux vs. Solaris Debate, Watch out for Scalability FUD (2010-02-19)
  • Sun Ray 3 Plus Client (2010-04-06)
  • Oracle Enterprise Pack for Eclipse 11g Accelerates Java Development (2010-08-25)
  • Capitalizing on Sun Technologies (2010-05-19)

The web version of this article has the list of the 100 most popular articles posted in 2010.
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28 Apr 2010 The Impact of ZFS Dedup Procedures on System Performance [22961]
First, Avoid Procedures that Generate Duplication

What performance characteristics are we expected to see from ZFS Storage appliance Dedup in the wake of the Sun Storage 7000 2010.Q1, asks Roch "Mars" Bourbonnais rhetorically in the blog "Dedup Performance Considerations." By way of coming up with an answer, he reviews the basics of ZFS dedup operations, then proceeds to an examination of the implications for performance.
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31 Mar 2010 OpenSolaris ZFS Deduplication [22978]
Learn How it Saves Space, Costs; Get Multiple Resource Links

"ZFS Deduplication is real, and ready for you to profit from," writes Oracle-Sun Principal Field Technologist Constantin Gonzalez, who recently posted a blog on everything you need to know about ZFS deduplication and a few links to help readers dig deeper.
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