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Hyper-V backup - initial backup duration RRS feed

  • Question

  • Hy,

    I have one question regarding Hyper-V calculator and some results for backup time. Anyway, I have entered into Hyper-V calculator all details regarding number of VM's, size of VM's and possible speed of backup transfer.  So for 100 VM's, each 80Gb size and 1Gbps network bandwith, Hyper-V calculator showed results of 49 hours for initial backup time. It seems that this is too much. Can someone maybe explain is this right calculation? I uploadaed Hyper-V calculator here so you can check all information.

     

    Thank you.


    http://TechyCentral.com
    Monday, October 24, 2011 9:10 AM

Answers

  • There is content titled "Replica Creation" at http://technet.microsoft.com/en-us/library/ff399619.aspx that provides estimates for the amount of time it would take, at different network speeds, to transmit various amounts of data under optimal conditions. Considering you are talking about transmitting 8Tb of data it does seem longer than expected but not far off. Taking in to account that we are also making this estimate based on other factors including the fact that "the speed of replica creation will be determined by the disk speed of the DPM server or that of the protected computer" the calculation appears to be valid.

    Tuesday, October 25, 2011 8:16 PM
    Moderator

All replies

  • There is content titled "Replica Creation" at http://technet.microsoft.com/en-us/library/ff399619.aspx that provides estimates for the amount of time it would take, at different network speeds, to transmit various amounts of data under optimal conditions. Considering you are talking about transmitting 8Tb of data it does seem longer than expected but not far off. Taking in to account that we are also making this estimate based on other factors including the fact that "the speed of replica creation will be determined by the disk speed of the DPM server or that of the protected computer" the calculation appears to be valid.

    Tuesday, October 25, 2011 8:16 PM
    Moderator
  • There are a lot of spreadsheets on Google that can help you with Hyper-V calculation.

    Here’s two that I use: https://wintelguy.com/vmcalc2.pl https://aidanfinn.com/?p=10587

    You should also see how Hyper-V configuration tools can help you plan your virtual infrastructure capacity. I recommend learning more about the best Hyper-V management tools for your virtual environment. There are a lot of great blog posts about this. Here is one of them: https://www.nakivo.com/blog/best-hyper-v-management-tools-virtual-environment/

    Sunday, August 30, 2020 2:36 PM