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  1. Deploying Enterprise Oracle Databases on vSphere « Long White Virtual Clouds

    […] Zero downtime maintenance by vMotion migrating live databases without disruption (Including Oracle RAC see previous article) […]

  2. Todd Ouimet
    Todd Ouimet at |

    Reading through this blog and other documents such as http://www.vmware.com/files/pdf/partners/oracle/v… you'll find the OS mentioned is Linux. My open question to anyone; will a virtualized Oracle RAC on Windows 2008 using the multi-writer method work in a production environment?

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    1. @vcdxnz001
      @vcdxnz001 at |

      Hi Todd, I've done a bit of testing with a two node 11g R2 RAC environment running on Windows 2008 R2. It appears to work the same as Linux when using the multi-writer flag correctly. However if you're planning to implement on vSphere 5.0 it would pay not to use the VMXNET3 NIC at this stage as there are a few bugs that may impact stability and connectivity if using large pages when using it on Windows (which you might normally implement for the interconnect private network). VMXNET2 or E1000 still work fine, although no large pages with E1000. It's only a problem with updated vSphere 5 version of VMware Tools. KB 2006277 explains the situation. It's expected to be fixed in 5.0 U1. Otherwise happy testing.

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  3. Oracle RAC 11g R2 Standard Edition on vSphere « Long White Virtual Clouds

    […] customer was very interested in receiving all the benefits I had outlined in my post on Oracle RAC in an HA/DRS Environment. They were particularly interested in resource controls, Guest OS isolation, rapid provisioning and […]

  4. Oracle RAC on Windows on vSphere « Long White Virtual Clouds

    […] Oracle RAC in a HA/DRS Environment […]

  5. @vcdxnz001
    @vcdxnz001 at |

    Hi Todd, I wanted to follow up on this. I can confirm now for certain that Oracle RAC on Windows using the multi-writer flag is fully supported and workable. There is a great blog post by one of the VMware guys Bob Goldsand that mentions this. You can read his blog at http://blogs.vmware.com/alliances/2011/12/episode….

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  6. @vcdxnz001
    @vcdxnz001 at |

    The initial stability issues with VMXNET3 on vSphere 5 have been fixed in vSphere 5.0 Update 1.

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