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Remote Direct Memory Access 
In Windows Server 2016, you can now turn on Remote Direct Memory Access (RDMA) on NICs that 
are not teamed or without Switch Embedded Teaming (SET). We discuss this later in this chapter. 
More info To learn more about working with RDMA, go to 
https://technet.microsoft.com/ 
library/mt403349.aspx
. 
VM groups 
To make the management of multiple VMs easier, Windows Server 2016 has added support for 
groupings of VMs. VM groups are exactly what the name implies: logical groupings of VMs. 
There are two different types of groups: 

VM collections 

Management collections 

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CHAPTER 2 | Software-defined datacenter 
A VM collection group is a logical collection of VMs. This type of group makes it possible for 
administrators to carry out their tasks on specific groups, rather than having to carry them out on 
each individual VM separately. 
A management collection group is a logical collection of VM collection groups. With this type of 
group, administrators can nest VM collections as needed. 
In Hyper-V Manager, it is possible to carry out operations on multiple VMs simply by selecting 
multiple objects, as illustrated in Figure 2-1 
Figure 2-1:
Options available on VM 
You can carry out these tasks without using VM groups, but the effort is somewhat limited. You can 
do more by using VM groups. Two scenarios for which VM groups are useful are backups and VM 
replicas. Even though it is fairly easy to back up or replicate a VM, and although such functionality has 
been included in Windows Server for some time, all VMs are dealt with separately. In some situations, 
because of distributed applications, VMs should be treated as a unit. This is true in both backup and 
VM replica situations.