Forum Discussion

H_Sharma's avatar
H_Sharma
Level 6
10 years ago

Snapshot In Windows and VMware

Hello Experts, My envornment is as below. Many VM machines and backup is happening via VMhost Master:- Win 2008 Server with 7.6.0.1 Vcenter:- 5.5 1:- How does a snapshot is created in dat...
  • RiaanBadenhorst's avatar
    10 years ago

    Hello

     

    I hope you're running the EEB because 5.5 is only supported on 7.6.0.1 +EEB EEB3318872

    1. No it does not make a full size snapshot. This is more a vmware topic so look here for more information http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1025279
    2. This is an MS topic so look here for more information http://msdn.microsoft.com/en-us/library/office/aa579091%28v=exchg.140%29.aspx
    3. I dont understand what you mean with "does it take the total size of the disk". If you're referring to backing up.... NetBackup will backup all used blocks, not free blocks. So if the vmdk is 100GB and only 50 is used in the OS we'll backup 50.
    4. Incremental rely on changed blocks. Check out this note http://www.symantec.com/business/support/index?page=content&id=HOWTO70912
  • Michael_G_Ander's avatar
    10 years ago

    1. Usually not, the snapshot contains the changed blocks since it was set. Size depends on time and activity

    2.Same answer as 1.

    3. Depends on your settings i the VMWARE policy, but in principle the full backup is reading all the blocks in the VM. Change block tracking if that has been set.

    I would recommend that you study the Netbackup VMWARE manual, especially the section about reducing the VM backup sizes.