A company has Windows Server 2012 R2 servers that have the Hyper-V role installed. The guest virtual
machines are configured as follows:
You need to ensure that the environment supports online virtual hard disk resizing.
What should you do?
A.
Convert the virtual machines to Generation 2 virtual machines.
B.
Deploy clustered storage spaces.
C.
Convert the drive format of the virtual machines to the VHDX file format.
D.
Deploy Serial Attached SCSI (SAS).
The following functionality is required for resizing a virtual hard disk:
VHDX – the ability to expand and shrink virtual hard disks is exclusive to virtual hard disks that are using the .vhdx file format. Online resizing is supported for VHDX disk types, including fixed, differencing, and dynamic disks. Virtual hard disks that use the .vhd file format are not supported for resizing operations.
http://technet.microsoft.com/en-us/library/dn282286.aspx
The problem with this is the Operating System drive is on an IDE controller since it is a Gen 1 VM and a SCSI controller is required to resize. So, while Answer C allows the data drive to resize, only if it’s on a SCSI controller, you still can’t resize the OS drive. The question does not specify which drive needs to support online resizing, but at least C gets you part way there. I’m not sure it’s possible to convert a VM from Gen 1 to Gen 2 which is required to boot from a SCSI controller.
C is correct as only with .VHDX an “online Expansion” is possible.
.VHD can be resized as well, but only when the VM is not running, so only offline-resizing with .VHD.
ON Generation 2 neither IDE nor SCSI is relevant for resizing, as long as the diks has the VHDX-Format.
bkrank does have a point. If the exam question will state that you need to resize the OS disk i will go for A. If it’s just about the datadisk, then C.
If the question is like it is here, it’s just another crap question…
The following functionality is required for resizing a virtual hard disk:
• VHDX – the ability to expand and shrink virtual hard disks is exclusive to virtual hard disks that are using the .vhdx file format. Online resizing is supported for VHDX disk types, including fixed, differencing, and dynamic disks. Virtual hard disks that use the .vhd file format are not supported for resizing operations.
• SCSI controller – the ability to expand or shrink the capacity of a virtual hard disk is exclusive to .vhdx files that are attached to a SCSI controller. VHDX files that are attached to an IDE controller are not supported.
And the iscsi part for OS disks: https://technet.microsoft.com/en-us/library/dn282285.aspx