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virtualisation consolidation - memory utilisation RRS feed

  • Question

  • Hi,

    In the past map did not consider actual memory utilisation, but physical memory, when placing a guest on a server in a consolidation scenario.

    Is this still the case under map 5.5? It is still mentioned in the FAQ, but in past posts I seemed to read future versions would use actual memory utilisation.

    Thanks in advance

    Regards

     

    Monday, February 21, 2011 11:48 AM

Answers

  • MAP since at least version 5.0 has used the amount of memory utilized by the guest machine for the memory calculation instead of using the physical memory on the guest when sizing it for placement.

     

    The mount of memory utilized is determined by taking the average of the amount of memory used over the observation period.  The actual value is determined by subtracting the performance counter "Memory: Available Bytes" from the total amount of phyiscal memory on the guest computer.  It's possible to reserve more memory than the calculated amount by specifying an additional reserve in the vitualization placement wizard.

     

     

    • Marked as answer by Stefan Roosen Tuesday, February 22, 2011 9:04 AM
    Monday, February 21, 2011 5:19 PM

All replies

  • MAP since at least version 5.0 has used the amount of memory utilized by the guest machine for the memory calculation instead of using the physical memory on the guest when sizing it for placement.

     

    The mount of memory utilized is determined by taking the average of the amount of memory used over the observation period.  The actual value is determined by subtracting the performance counter "Memory: Available Bytes" from the total amount of phyiscal memory on the guest computer.  It's possible to reserve more memory than the calculated amount by specifying an additional reserve in the vitualization placement wizard.

     

     

    • Marked as answer by Stefan Roosen Tuesday, February 22, 2011 9:04 AM
    Monday, February 21, 2011 5:19 PM
  • thanks for the info

    any chance on updating the faq?

    regards

     

    Tuesday, February 22, 2011 9:05 AM
  • Done.

     

    Thanks,

    Jay

    Tuesday, February 22, 2011 5:20 PM