DRAG DROP
You have a server that runs Windows Server 2012 R2.
You need to create a volume that will remain online if two disks in the volume fail. The solution must minimize
the number of disks used to create the volume.Which three actions should you perform in sequence? (To answer, move the appropriate three actions from the
list of actions to the answer area and arrange them in the correct order.)
Select and Place:
Answer: 
Explanation:
Box 1: Add five physical disks.
Box 2: Create a storage space by using the default disk allocation.
Box 3: Create a virtual disk.
Box 1: Add five physical disks.
Box 2: Create a storage space by using the default disk allocation.
Box 3: Create a virtual disk.
In Windows Server 2012 Storage Spaces, a 3-way mirror requires at least 5 physical disks.
The reason is that a 3-way mirror uses a quorum. In order to keep running, the mirror space must keep over 50% of the disks functioning. So a 3-way mirror must have at least 5 physical disks to be able to survive the loss of up to 2 physical disks.
Moreover, we need to make a difference between storage space and storage pool:
A pool is simply a logical grouping of physical disks, whereas a storage space is a virtualized disk that can be used like a physical disk.