OSDisk interface
Specifies information about the operating system disk used by the virtual machine. For more information about disks, see About disks and VHDs for Azure virtual machines.
Properties
| caching | Specifies the caching requirements. Possible values are: None, ReadOnly, ReadWrite. The defaulting behavior is: None for Standard storage. ReadOnly for Premium storage.  | 
| create | 
	Specifies how the virtual machine disk should be created. Possible values are Attach: This value is used when you are using a specialized disk to create the virtual machine. FromImage: This value is used when you are using an image to create the virtual machine. If you are using a platform image, you should also use the imageReference element described above. If you are using a marketplace image, you should also use the plan element previously described.  | 
| delete | 
	Specifies whether OS Disk should be deleted or detached upon VM deletion. Possible values are: Delete. If this value is used, the OS disk is deleted when VM is deleted. Detach. If this value is used, the os disk is retained after VM is deleted. The default value is set to Detach. For an ephemeral OS Disk, the default value is set to Delete. The user cannot change the delete option for an ephemeral OS Disk.  | 
| diff | 
	Specifies the ephemeral Disk Settings for the operating system disk used by the virtual machine.  | 
| disk | 
	Specifies the size of an empty data disk in gigabytes. This element can be used to overwrite the size of the disk in a virtual machine image. The property 'diskSizeGB' is the number of bytes x 1024^3 for the disk and the value cannot be larger than 1023.  | 
| encryption | 
	Specifies the encryption settings for the OS Disk. Minimum api-version: 2015-06-15.  | 
| image | The source user image virtual hard disk. The virtual hard disk will be copied before being attached to the virtual machine. If SourceImage is provided, the destination virtual hard drive must not exist.  | 
| managed | 
	The managed disk parameters.  | 
| name | The disk name.  | 
| os | 
	This property allows you to specify the type of the OS that is included in the disk if creating a VM from user-image or a specialized VHD. Possible values are: Windows, Linux.  | 
| vhd | The virtual hard disk.  | 
| write | 
	Specifies whether writeAccelerator should be enabled or disabled on the disk.  | 
Property Details
caching
Specifies the caching requirements. Possible values are: None, ReadOnly, ReadWrite. The defaulting behavior is: None for Standard storage. ReadOnly for Premium storage.
caching?: CachingTypes
				Property Value
		createOption
	 
	Specifies how the virtual machine disk should be created. Possible values are Attach: This value is used when you are using a specialized disk to create the virtual machine. FromImage: This value is used when you are using an image to create the virtual machine. If you are using a platform image, you should also use the imageReference element described above. If you are using a marketplace image, you should also use the plan element previously described.
createOption: string
				Property Value
string
		deleteOption
	 
	Specifies whether OS Disk should be deleted or detached upon VM deletion. Possible values are: Delete. If this value is used, the OS disk is deleted when VM is deleted. Detach. If this value is used, the os disk is retained after VM is deleted. The default value is set to Detach. For an ephemeral OS Disk, the default value is set to Delete. The user cannot change the delete option for an ephemeral OS Disk.
deleteOption?: string
				Property Value
string
		diffDiskSettings
	  
	Specifies the ephemeral Disk Settings for the operating system disk used by the virtual machine.
diffDiskSettings?: DiffDiskSettings
				Property Value
		diskSizeGB
	 
	Specifies the size of an empty data disk in gigabytes. This element can be used to overwrite the size of the disk in a virtual machine image. The property 'diskSizeGB' is the number of bytes x 1024^3 for the disk and the value cannot be larger than 1023.
diskSizeGB?: number
				Property Value
number
		encryptionSettings
	 
	Specifies the encryption settings for the OS Disk. Minimum api-version: 2015-06-15.
encryptionSettings?: DiskEncryptionSettings
				Property Value
image
The source user image virtual hard disk. The virtual hard disk will be copied before being attached to the virtual machine. If SourceImage is provided, the destination virtual hard drive must not exist.
image?: VirtualHardDisk
				Property Value
		managedDisk
	 
	The managed disk parameters.
managedDisk?: ManagedDiskParameters
				Property Value
name
The disk name.
name?: string
				Property Value
string
		osType
	 
	This property allows you to specify the type of the OS that is included in the disk if creating a VM from user-image or a specialized VHD. Possible values are: Windows, Linux.
osType?: OperatingSystemTypes
				Property Value
vhd
		writeAcceleratorEnabled
	  
	Specifies whether writeAccelerator should be enabled or disabled on the disk.
writeAcceleratorEnabled?: boolean
				Property Value
boolean