2 Replies Latest reply on Nov 5, 2018 1:25 PM by PaulMurphyCO

    Hard drive expands far larger than snapshot on parent VM after committing snapshot

    PaulMurphyCO Novice

      Environment:

      VMware Horizon 7.5

      vSphere 6.7

       

      Created a parent VM - disk usage size about 27 GB when done.

      VM Hardware:  Hard disk 1 is 75 GB, thin provisioned, sitting on a VMFS 6 datastore.

       

      Take snapshot 1 for use with linked-clones - disk usage size in the vSphere Web Client shows about 27 GB.

      Take a second snapshot 2 with some updates and applications - disk usage size snapshot size is about 1.5 GB.

       

      If I delete/commit snapshot 1, the storage usage goes up to almost the entire hard drive size - 74.82 GB.

       

      I can do the sdelete/shrink disk to reclaim the disk space, but why would committing a snapshot that is no where near the size of hard drive cause the hard drive to expand to its full size?

       

      Thanks for any help.