none
dpm storage calculator for hyper-v RRS feed

Answers

  • Hi,

    the average churn % in a day correspond to the % of file that will be modify through the day.

    You just need to evaluate this. By default the calculator takes 10% modification per day which can be huge in some cases but small in others.

     

    Thursday, January 13, 2011 2:23 PM

All replies

  • Hi,

    the average churn % in a day correspond to the % of file that will be modify through the day.

    You just need to evaluate this. By default the calculator takes 10% modification per day which can be huge in some cases but small in others.

     

    Thursday, January 13, 2011 2:23 PM
  • Hi

    Jeremy is spot on, but it's hard to know ahead of time and the role of the VM will play a large part on what potentially changes inside each day.  About the best you can do is to protect a few and only back them up once a day, then see how much data was transfered in the details of the backup jobs.  You may be able to average it across all VM's if they play similar roles, then plug the average into the calculator.

     


    Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.
    Saturday, January 15, 2011 11:15 PM
    Moderator
  • One way is to find it from the past recovery points data, for example if you have a total of X recovery points, spreading around Y days and shadowcopy diff area to store them is Z GB, from these numbers you can calculate per day chrun as well as churn per recoverypoint. Hope this helps you.
    Thanks, Praveen D [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.
    Saturday, January 29, 2011 9:00 AM