• Help in monitoring the space usage on the Datastore where the VM resides. 
• Find running on a snapshot with memory status, snapshot files will take significantly large space on the datastore. 
• Will prevents VM may Suspend/Poweroff  if the datastore usage reaches 100% usage. 

There are several methods to determine if a virtual machine is running on snapshot or not.

Using the virtual machine's Snapshot Manager

1. Log in to the ESXi Host UI or vCenter Web Client
2. Right-click on the virtual machine and select Snapshots > Snapshot Manager/Manage Snapshots

 

3. If a snapshot is listed, the virtual machine is attached to one or more virtual disks which are in a snapshot state.
4. Right click on VM and select Edit settings.

5. Identifying the Datastore where the VM resides 

Viewing the virtual machine configuration file

1. Log in as root to the ESXi host using SSH.
2. Navigate to the virtual machine directory containing vmdk virtual disk files. Run the cd command to change the current directory.

3. Run this command to list vmdk (disks) of the VM in the vmx (configuration file of VM):

4. Run this command to list the snapshot files in the directory:

• Sesparse is a default format for all delta disks on the VMFS6 datastores. On VMFS5, Sesparse is used for virtual disks of the size 2 TB and larger.
• In certain special purpose configurations, you may want to exclude one or more of the virtual machine's disks from the snapshot. 
• To exclude a disk from the snapshot, choose Edit > Virtual Machine Settings, select the drive you want to exclude, change the configuration from Advanced Options. For more information, see Change Disk Mode to Exclude Virtual Disks from Snapshots

ESXi Shell using the vim-cmd

1. Run this command to to see all VM's on the host:

2. Using the vmid in the first column, run: vim-cmd vmsvc/get.snapshotinfo vmid

For example:


Notes: In some cases, it is still possible that a virtual machine disk snapshot exists without it being identified and managed by the Snapshot Manager. For more information on committing and removing snapshots, see Consolidating/Committing snapshots in ESXi

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