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Figure 2-18:
The menu option for creating a new production checkpoint for a VM 
Note If you turn off production checkpoints for a VM, the Checkpoint option will not appear in the 
shortcut menu for the VM. 
When a production checkpoint is created, the message shown in Figure 2-19 appears, which confirms 
that the production checkpoint has been successfully taken. 

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CHAPTER 2 | Software-defined datacenter 
Figure 2-19:
Message indicating that the production checkpoint was successfully created 
And, of course, you also can do all of this by using Windows PowerShell. 
Hot add and hot remove for network adapters and memory 
With Windows Server 2016, you no longer need to plan for downtime to upgrade or downgrade 
memory on VMs hosted on Hyper-V. There is also no downtime when adding or removing a network 
card. Now, you can hot-add and hot-remove both network adapters and memory on the platform. 
This is a huge improvement that will ease the Hyper-V administrator’s job. In a physical environment, 
installing additional RAM or adding a new network card is a time-consuming process that usually 
involves planning and downtime. With this new feature, you can accomplish everything with no 
downtime. Both service providers and enterprises can now scale up or scale down the memory of VMs 
in seconds by using either Hyper-V Manager or Windows PowerShell. 
Note Hot-add memory works for Generation 1 and Generation 2 guests running Windows Server 
2016. It does not work with Windows Server 2012 R2 or earlier. 
Hot add and remove memory 
Figure 2-20 presents Hyper-V Manager with two VMs named VM1 and VM2 running on it. Hyper-V 
Manager shows that VM2 is a Generation 1 VM, and the Settings dialog box for VM2 shows that this 
VM has been provisioned with 2 GB (2,048 MB) of RAM. 
Figure 2-20:
Generation 1 settings for memory 

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CHAPTER 2 | Software-defined datacenter 
Connecting to this VM using Virtual Machine Connection shows that two applications are currently 
running on its desktop: Date and Time, which displays a clock with the current time, and Task 
Manager, which displays the memory usage of VM2 and shows that 2 GB are available, as shown 
in Figure 2-21.