How to fix app-consistent snapshots freeze in SynetoOS 4

Written By Christian Castagna (Administrator)

Updated at January 10th, 2025

→ Applies to: SynetoOS 4.x

WARNING: VM reboot is required

This article helps to solve the issue of the system "freeze" when SynetoOS takes an app-consistent snapshot.

By default, VMware Tools has VSS enabled in its installer and requires a small "freeze" or "stun" to take a consistent snapshot.

The following steps will disable the VSS implemented in VMware and enable the VSS built into Windows which does not "freeze" the system.

 

Step 1. Login to SynetoOS 4 GUI (replace <your_ip_address_or_hostname> with the correct ip/hostname)

https://<your_ip_address_or_hostname>

 

Step 2. From the left menu, click on Datastores

 

Step 3. Click on Protection 

 

Step 4. Disable Protection 

 

Step 5. Connect to Windows VM 

Step 6. Run services.msc and find the Volume Shadow Copy

Right click on it and select Properties

 

Step 7.  Select Startup type = Automatic

 

Step 8. Access the installed programs from Windows control panel

Step 9. Identify VMware Tools and click on Modify

 

Step 10. Disable parameters as shown in the following screenshot

 

Step 11. Reboot Windows VM

Step 12. Re-nable Protection on SynetoOS 4