If you remove a snapshot, all of the changes made to the disks of the virtual machine since you created the snapshot have to be written to the disks from the snapshot file. The time it takes to remove a snapshot depends on the size of the snapshot. The longer you keep the snapshot, the more changes will be made to the disks, and the larger the snapshot file will be. So I recommend to keep a snapshot only for a short period of time. Remember snapshots are no backups.
↧