Technical data

DATA CENTER TECHNICAL BRIEF
viii. When you create a GPT partition, some space is offset so that the storage aligns to the correct
block. This means that the primary partition is usually 2. To format the new partition, type:
list partition
To make sure that the second partition is the one you want: type:
select partition 2
ix. To assign the partition to a mount point, the same mount point used earlier, type:
assign mount=c:\hyperv1
Using a mount point is strictly is not required and is strictly for convenience.
x. To format the disk, type:
format FS=NTFS Label=hyperv1 QUICK
This creates a new formatted partition with the label “hyperv1” using a Quick format.
2. Refresh the host that has the virtual port in SCVMM.
For Passthrough Disks
 You need two LUNs per guest: one for the configuration files and on which to actually install the OS. If
you plan on having additional drives, you do not need additional configuration LUNs.
 Make sure that the disk for the drive on which the OS is installed is offline.
 If the LUN has been previously used, convert it to a Master Boot Record (MBR) partition type.
 The LUN that is used for the configuration data should be formatted as a GPT disk and assigned a drive
letter or mount point.
USING NPIV
Deploying Guests
Follow the prompts until you get to the hardware configuration. You can then choose the type of disk you
want. NPIV can be used on any type of disk, as long as they are using a LUN configured for NPIV.
There are three kinds of disks:
 A virtual disk makes a file that contains the disk. If you use this method, you have a LUN of 12 GB, and
the guest needs to be a little smaller than that because of the additional supporting files.
 A passthrough disk uses the actual LUN for the files. If you opened the LUN containing the guest, you
would see the files. If you use a passthrough, you do not need another LUN to store the configuration
files, but you do need an additional LUN. Advantages of the passthrough are that you can use the entire
size of the LUN for the data and the disk is created more quickly.
 An existing disk uses an virtual disk that has already been created.
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