How to Schedule a Hyper-V Checkpoint.
Before I show you how to use SnapShot Master to create and schedule a Hyper-V checkpoint I will briefly describe what a checkpoint is.
What is a Hyper-V Checkpoint?
Hyper-V Checkpoints are a quick and easy way to provide a previous point in time in which you can revert your virtual machine to. Checkpoints are a great feature to use prior to performing any risky upgrades, applying Windows updates or hardware reconfiguration as they give you the benefit of a fast roll back point should any issues occur.
When you create a Hyper-V Checkpoint, a differencing disk is created with .AVHD extension and an .XML file for configuration changes. There may also be additional files for the Virtual Machine Memory and Devices to be captured (.BIN and .VSV) if the virtual machine was on during the checkpoint creation. Once the checkpoint has completed, the differencing disk (the .AVHD file) is used for temporary changes to the VM and the original disk becomes read only.
The more checkpoints you create, the more disk space you will utilise. It is also worth noting that the VM will also have its performance effected by each checkpoint created.
The Hyper-V Checkpoint Tree shows each and every checkpoint created for the virtual machine selected. Each subsequent checkpoint stems from the previous one with the delta changes stored on the checkpoint’s disk which is the difference between the current state and the last checkpoint created.
Scheduling a Hyper-V Checkpoint
Now that you understand Hyper-V Checkpoints a little better, we can now start scheduling their creation.
Open your SnapShot Master console and let it sync with your Hyper-V environment and populate the console with your virtual machines.
Once all your virtual machines have shown up, choose the VMs you want to create a checkpoint for by checking the checkbox. You can choose to either do a single machine or multiple machines. In this example Ill create a checkpoint for multiple VMs. Right Click any VM and from the menu go to Selected VMs then Take Snapshot.
Give the Checkpoint a Name and Description then click OK.
Next we can choose to Execute Now or Schedule Job. I have chosen to schedule the Hyper-V Checkpoint creation.
You can now give the Scheduled Hyper-V Checkpoint job a name then click OK.
The task scheduler window now starts up. Click on NEW to create a new scheduled task.
Choose a date and time that you want to schedule the Hyper-V Checkpoint for then click OK and then Click OK again on the task scheduling window. The Hyper-V Checkpoints will now be created at the time you have scheduled.
To view Job Status of your scheduled tasks within SnapShot Master, go to the JOBS tab and then Scheduled Jobs. You can see Active / Recent Jobs, Scheduled Jobs as well as Job History.
Now when the time you have scheduled the creation of the Hyper-V checkpoint comes, SnapShot Master will automate this. If you have email notifications setup within SnapShot Master, you will receive emails detailing when the job started and finalised.