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OpenSolaris Community: Logical Domains

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LDoms Overview

Logical Domains, or LDoms, technology allows a user to allocate a system's various resources, such as memory, CPUs, and devices, into logical groupings and create multiple, discrete systems, each with their own operating system, resources, and identity within a single computer system.

Getting Started

Documentation

Get the Software

Discussions

Wikis

  • Logical Domains Wiki
  • Solaris Cluster Wiki on LDoms Support Wiki

Reviews

  • T5120/T5220 Review, by Octave Orgeron (PDF)
  • The SPARC Enterprise T5140/T5240 and Virtualization, By Octave Orgeron (PDF)
Technical Papers

  • An Introduction to Logical Domains, Part 1 - By Octave Orgeron (Reprinted from ;login: The Magazine of USENIX, vol. 32, no. 4 (Berkeley, CA: USENIX Association, [2007]), pg. 20-24. (PDF)
  • An Introduction to Logical Domains, Part 2 - By Octave Orgeron (Reprinted from ;login: The Magazine of USENIX, vol. 32, no. 5 (Berkeley, CA: USENIX Association, [2007]), pg. 26-34. (PDF)
  • An Introduction to Logical Domains, Part 3 - By Octave Orgeron (Reprinted from ;login: The Magazine of USENIX, vol. 33, no. 1 (Berkeley, CA: USENIX Association, [2008]), pg. 39-47. (PDF)
  • An Introduction to Logical Domains, Part 4 - By Octave Orgeron (Reprinted from ;login: The Magazine of USENIX, vol. 33, no. 2 (Berkeley, CA: USENIX Association, [2008]), pg. 24-33. (PDF)
  • Sun BluePrints, Sun Server Virtualization Technology, by Jeff Savit (HTML)
  • Sun BluePrints, Solaris Operating System Hardware Virtualization Product Architecture, by Chien-Hua Yen (PDF)
  • Sun BluePrints, Using Logical Domains and CoolThreads Technology: Improving Scalability and System Utilization, by Ning Sun and Lee Anne Simmons (PDF)
  • Sun BluePrints, LDOMS I/O Best Practices: Data Reliability with Logical Domains, by Peter A. Wilson (PDF)
  • Sun BluePrints, LDOMS I/O Best Practices: Network Availability with Logical Domains, by Peter A. Wilson (PDF)
  • LDoms Community Cookbook - Tasty Recipes for Sun Logical Domains (Wiki Page) New
  • Deploying Sugar CRM on Sun Logical Domains for Increased Scalability (PDF) New

Presentations

Blog Entries

Blogs

Eric Sharakan - LDoms 1.2 is out!

Jul 4, 6:37 AM

LDoms 1.2 is now available. I've included a snippet of the initial marketing announcement below. There will be more official marketing activity in the coming weeks (including the updating of ...

Octave Orgeron - He's Dead Jim!

Jun 16, 7:02 AM

Well the rumor on the street this week is that Sun has killed off the UltraSPARC-RK or ROCK processor. This was suppose to be a 16 core processor for the upcoming SuperNova servers. This would be an ...

Eric Sharakan - OpenSolaris & LDoms

Jun 1, 9:19 PM

OpenSolaris 2009.06 officially launched today. The big news is that it supports SPARC. I was going to post a nice article about how it is also supported under LDoms, but Marcus & Liam did a much ...

Octave Orgeron - SPARC64 Strikes Back on Super-Computing

May 14, 6:58 PM

It would appear that Fujitsu has learned a lot from Sun's CMT processor designs and is testing out its new SPARC64 VIIIfx or Venus processor which is an 8 core SPARC64 chip that can perform 128 ...

Octave Orgeron - Mergers and Legal Dribble

May 14, 6:19 PM

The SEC filings on the merger are available for the public to review . The document has lots of interesting details about the merger process, conditions, etc. Reading through the document provides an ...