[MS-VDS]: Virtual Disk Service (VDS) Protocol Specification

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} DEPENDENT_DISK_FLAG;DEPENDENT_DISK_FLAG_NONE: No flags specified. Use system defaults.DEPENDENT_DISK_FLAG_MULT_BACKING_FILES: Multiple files backing the virtual disk.DEPENDENT_DISK_FLAG_FULLY_ALLOCATED: Fully allocated virtual disk.DEPENDENT_DISK_FLAG_READ_ONLY: Read-only virtual disk.DEPENDENT_DISK_FLAG_REMOTE: The backing file of the virtual disk is not on a localphysical disk.DEPENDENT_DISK_FLAG_SYSTEM_VOLUME: Reserved.DEPENDENT_DISK_FLAG_SYSTEM_VOLUME_PARENT: The backing file of the virtual disk ison the system volume.DEPENDENT_DISK_FLAG_REMOVABLE: The backing file of the virtual disk is on a removablephysical disk.DEPENDENT_DISK_FLAG_NO_DRIVE_LETTER: Drive letters are not automatically assignedto the volumes on the virtual disk.DEPENDENT_DISK_FLAG_PARENT: The virtual disk is a parent in a differencing chain.DEPENDENT_DISK_FLAG_NO_HOST_DISK: The virtual disk is not surfaced on (attached to)the local host. For example, it is attached to a guest virtual machine.DEPENDENT_DISK_FLAG_PERMANENT_LIFETIME: The lifetime of the virtual disk is not tiedto any application or process.2.2.2.18.1.4 VIRTUAL_DISK_ACCESS_MASKThe VIRTUAL_DISK_ACCESS_MASK enumeration contains the bit mask for specifying accessrights to a virtual hard disk (VHD).typedef enum _VIRTUAL_DISK_ACCESS_MASK{VIRTUAL_DISK_ACCESS_SURFACE_RO = 0x00010000,VIRTUAL_DISK_ACCESS_SURFACE_RW = 0x00020000,VIRTUAL_DISK_ACCESS_UNSURFACE = 0x00040000,VIRTUAL_DISK_ACCESS_GET_INFO = 0x00080000,VIRTUAL_DISK_ACCESS_CREATE = 0x00100000,VIRTUAL_DISK_ACCESS_METAOPS = 0x00200000,VIRTUAL_DISK_ACCESS_READ = 0x000d0000,VIRTUAL_DISK_ACCESS_ALL = 0x003f0000,VIRTUAL_DISK_ACCESS_WRITABLE = 0x00320000} VIRTUAL_DISK_ACCESS_MASK;VIRTUAL_DISK_ACCESS_SURFACE_RO: Open the VHD for read-only surfacing (attaching)access. The caller must have READ access to the virtual disk image file. If used in a request toopen a VHD that is already open, the other handles must be limited to eitherVIRTUAL_DISK_ACCESS_UNSURFACE or VIRTUAL_DISK_ACCESS_GET_INFO access;otherwise, the open request with this flag will fail.[MS-VDS] — v20110610Virtual Disk Service (VDS) Protocol SpecificationCopyright © 2011 Microsoft Corporation.Release: Friday, June 10, 201188 / 360
VIRTUAL_DISK_ACCESS_SURFACE_RW: Open the VHD for read-write surfacing (attaching)access. The caller must have (READ | WRITE) access to the virtual disk image file. If used in arequest to open a VHD that is already open, the other handles must be limited to eitherVIRTUAL_DISK_ACCESS_UNSURFACE or VIRTUAL_DISK_ACCESS_GET_INFO access;otherwise, the open request with this flag will fail. If the VHD is part of a differencing chain,the disk number for this request cannot be less than the ReadWriteDepth specified during theprior open request for that differencing chain.VIRTUAL_DISK_ACCESS_UNSURFACE: Open the VHD to allow unsurfacing (detaching) of asurfaced (attached) VHD. The caller must have (FILE_READ_ATTRIBUTES | FILE_READ_DATA)access to the virtual disk image file.VIRTUAL_DISK_ACCESS_GET_INFO: Open the VHD for retrieval of information. The callermust have READ access to the virtual disk image file.VIRTUAL_DISK_ACCESS_CREATE: Open the VHD for creation.VIRTUAL_DISK_ACCESS_METAOPS: Open the VHD to perform offline metaoperations. Forinformation on the offline metaoperations, see [MSDN-CompactVirtualDisk], [MSDN-ExpandVirtualDisk, [MSDN-MergeVirtualDisk], [MSDN-SetVirtualDiskInfo], and MSDN-VIRTDSKACCMSK]. The caller must have (READ | WRITE) access to the virtual disk image file,up to ReadWriteDepth if working with a differencing chain. If the VHD is part of a differencingchain, the backing store (host volume) is opened in read/write exclusive mode up toReadWriteDepth.VIRTUAL_DISK_ACCESS_READ: Reserved.VIRTUAL_DISK_ACCESS_ALL: Allows unrestricted access to the VHD. The caller must haveunrestricted access rights to the virtual disk image file.VIRTUAL_DISK_ACCESS_WRITABLE: Reserved.2.2.2.18.2 Structures2.2.2.18.2.1 VDS_VDISK_PROPERTIESThe VDS_VDISK_PROPERTIES structure defines the properties of a virtual disk.typedef struct _VDS_VDISK_PROPERTIES {VDS_OBJECT_ID Id;VDS_VDISK_STATE State;VIRTUAL_STORAGE_TYPE VirtualDeviceType;ULONGLONG VirtualSize;ULONGLONG PhysicalSize;[string] LPWSTR pPath;[string] LPWSTR pDeviceName;DEPENDENT_DISK_FLAG DiskFlag;BOOL bIsChild;LPWSTR pParentPath;} VDS_VDISK_PROPERTIES,*PVDS_VDISK_PROPERTIES;Id: A unique VDS-specific session identifier of the disk.State: A VDS_VDISK_STATE enumeration value that specifies the virtual disk state.[MS-VDS] — v20110610Virtual Disk Service (VDS) Protocol SpecificationCopyright © 2011 Microsoft Corporation.Release: Friday, June 10, 201189 / 360
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Revision SummaryDateRevisionHistory
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Contents1 Introduction ............
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2.2.2.6.1 Enumerations ............
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3.1.12.2 IVdsDisk2 Interface ......
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3.4.5.2.6.2 IVdsServiceUninstallDis
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3.4.5.2.32.3 IVdsVolumeMF::AddAcces
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1 IntroductionThe Virtual Disk Serv
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volume managervolume plexThe follow
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virtual disk: A disk that does not
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Note There is a charge to download
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1.4 Relationship to Other Protocols
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Parameter Value ReferenceRPC interf
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2 MessagesThe following sections sp
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VDS_H_FAILING_REDUNDANCY: One or mo
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VDS_ASYNCOUT_CREATEPARTITION: Infor
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VDSStorageIdTypeVendorSpecific = 0x
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VDS_FSF_ALLOCATION_UNIT_8K = 0x0010
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VDS_DET_OEM: The extent belongs to
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Page 40 and 41: 2.2.1.2.21 VDS_LUN_RESERVE_MODEThe
Page 42 and 43: VDS_VF_NOT_FORMATTABLE: If set, the
Page 44 and 45: ValueVDS_NF_DISK_ARRIVE0x00000008VD
Page 46 and 47: wcLetter: The drive letter that tri
Page 48 and 49: 2.2.1.3.10 VDS_ASYNC_OUTPUTThe VDS_
Page 50 and 51: Value0x4000000000000000GPT_BASIC_DA
Page 52 and 53: m_bCommandQueueing: A Boolean value
Page 54 and 55: diskId: The VDS object ID of the di
Page 56 and 57: MbrPartInfo: Contains information f
Page 58 and 59: VDS_OT_DISK: The object is a disk.V
Page 60 and 61: typedef struct _VDS_DRIVE_LETTER_PR
Page 62 and 63: pSharedSecret: A pointer to an arra
Page 64 and 65: Corresponding HBA_PORTSTATE value:
Page 66 and 67: wwnNode: The node WWN for the HBA p
Page 68 and 69: 2.2.2.6.2.2 VDS_ISCSI_INITIATOR_POR
Page 70 and 71: unsigned long ulFlags;unsigned long
Page 72 and 73: 2.2.2.9.1 Structures2.2.2.9.1.1 VDS
Page 74 and 75: pwszAdaptorName: The null-terminate
Page 76 and 77: ValueRemovableMedia0x0000000BFixedM
Page 78 and 79: style: The value from the VDS_PARTI
Page 80 and 81: ulFlags: The combination of any val
Page 82 and 83: VDS_VPT_SPAN = 0x0000000B,VDS_VPT_S
Page 84 and 85: allocated as the backing store for
Page 86 and 87: VDS_VST_DETACH_PENDING: The virtual
Page 90 and 91: VirtualDeviceType: A pointer to a V
Page 92 and 93: additional information about the re
Page 94 and 95: Return value/code0x80042423VDS_E_PR
Page 96 and 97: Return value/codeDescriptionVDS_E_P
Page 98 and 99: Return value/codeDescriptionwhen th
Page 100 and 101: Return value/code0x8004251BVDS_E_VO
Page 102 and 103: Return value/codeVDS_E_DISK_LAYOUT_
Page 104 and 105: Return value/code0x80042566VDS_E_IN
Page 106 and 107: Return value/code0x80042588VDS_E_VO
Page 108 and 109: Return value/codeVDS_E_ASSOCIATED_P
Page 110 and 111: Return value/code0x80042815VDS_E_VO
Page 112 and 113: Return value/code0x8004290AVDS_E_IS
Page 114 and 115: Return value/code0x80042924VDS_E_RA
Page 116 and 117: 3 Protocol DetailsThe following sec
Page 118 and 119: ParameterRPC interface UUID forIVds
Page 120 and 121: Objects can be HBA ports, initiator
Page 122 and 123: 3.1.5 Service Object InterfacesThis
Page 124 and 125: Methods in RPC Opnum OrderMethodGet
Page 126 and 127: Methods in RPC Opnum OrderMethodGet
Page 128 and 129: MethodGetPropertiesDescriptionRetri
Page 130 and 131: MethodDescriptionOpnum: 3SetImportT
Page 132 and 133: MethodQueryExtentsConvertStyleSetFl
Page 134 and 135: All methods MUST NOT throw exceptio
Page 136 and 137: All methods MUST NOT throw exceptio
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MethodDescriptionOpnum: 3FormatAddA
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3.1.13.7 IVdsVolumeOnline Interface
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MethodDescriptionOpnum: 6MergeExpan
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Virtual Disk Providers and Virtual
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For a VDS_DISK_EXTENT or VDS_DISK_F
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3.2.1.4 DisksIVdsAdvancedDisk::GetP
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pointer to the virtual disk object
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3.3.2 TimersNone.3.3.3 Initializati
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3.4.1.1 Service ObjectThe service o
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•If the disk is a removable drive
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When the client calls a method to r
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•If the signal state is TRUE and
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3.4.5.1.3 Adding Disk ObjectsThe se
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3.4.5.1.4 Removing Disk ObjectsThe
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whether a basic, dynamic, or unallo
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If S_FALSE is returned, the client
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•Set the list of objects in the n
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•Set the pHrResult output paramet
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When the server receives this messa
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wcFirstLetter: The first drive lett
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Result of requeryAction server MUST
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ulFlags: A value from the VDS_SERVI
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pDiskIdArray: A pointer to an array
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3.4.5.2.8.2 IVdsServiceIscsi::Query
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HRESULT GetProperties([out] VDS_HBA
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Return Values: The method MUST retu
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VirtualDeviceType: Pointer to a VIR
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HRESULT GetDiskFromVDisk([in] IVdsV
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3.4.5.2.18 IVdsPack Methods3.4.5.2.
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3.4.5.2.18.5 IVdsPack::CreateVolume
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The server MUST update the percenta
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•Return an HRESULT indicating fai
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•objectType member is the value V
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[out] IVdsPack** ppPack);ppPack: A
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Clients cannot change the partition
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ERROR_SUCCESS (0x00000000)When the
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HRESULT QueryPartitions([out, size_
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•For each callback object that is
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3.4.5.2.23.7 IVdsAdvancedDisk::Dele
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Note This method is not valid on CD
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•objectType member is VDS_NTT_VOL
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•ullOffset is the byte offset at
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eginning of the disk that ullOffset
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usFileSystemRevision: A 16-bit, bin
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HRESULT FormatPartitionEx2([in] ULO
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•Set the signal state in the asyn
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•Create a new async object implem
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If the volume resides on a basic di
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•Delete all volume plexes in the
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•For each callback object registe
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If the volume is associated with a
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The server MUST then perform the fo
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•Verify that plNumberOfAccessPath
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HRESULT Mount();This method has no
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HRESULT GetFileSystemTypeName([out,
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•Return an HRESULT indicating fai
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•Allocate a buffer to hold the vo
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•Verify that ullDesiredNumberOfRe
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•Verify that ppVolume is not NULL
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•Search all software providers fo
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ProviderSpecificFlags: Flags specif
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For example, to merge a differencin
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At any point in the preceding seque
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•objectType member is VDS_NTT_FIL
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•Volume member is a VDS_VOLUME_NO
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Figure 2: Client starting a VDS ses
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4.1.2 Ending SessionsThe following
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2. The server determines that the c
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Figure 8: Retrieving the properties
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8. When the format operation comple
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wprintf( L" Volume Id: %s\n", buffe
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6 Appendix A: Full IDLFor ease of i
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VDSBusTypeiScsi = 0x00000009,VDSBus
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} VDS_VOLUME_TYPE;typedef enum _VDS
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VDS_OBJECT_IDULONGLONG} VDS_PARTITI
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typedef struct _VDS_STORAGE_DEVICE_
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} GptPartInfo;[default];};} CREATE_
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VDS_PS_UNKNOWN = 0x00000000,VDS_PS_
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typedef struct _VDS_FILE_SYSTEM_TYP
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typedef struct _VDS_PACK_PROP{VDS_O
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OPEN_VIRTUAL_DISK_FLAG_NO_PARENTS =
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);[out] unsigned long *pcFetched[he
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HRESULT QueryFileSystemTypes([out,
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*pInitiatorSharedSecret,[in] VDS_OB
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}[]HRESULT CreatePack([out] IVdsPac
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HRESULT CreateVolume([in] VDS_VOLUM
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[object,uuid(8F4B2F5D-EC15-4357-992
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uuid(9882f547-cfc3-420b-9750-00dfbe
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);[helpstring("method QueryPlexes")
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);[helpstring("method Mount")]HRESU
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[object,uuid(4daa0135-e1d1-40f1-aaa
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7 Appendix B: Product BehaviorThe i
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Supported operating system versionI
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•Dynamic disk volumes - The flag
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overwritten with "UDF". The first e
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Section 3.1.7.1: This interface is
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Section 3.4.5.2.18.5: The Windows i
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On Windows Server 2003, Windows Ser
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incorrectly returns 0 in the pulPer
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Section 3.4.5.2.38.3: Windows does
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•Protocol syntax updated due to p
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IVdsVolumeMF (section 2.2.2.15 81,
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enumerations 70interface 130methods
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PVDS_REPARSE_POINT_PROP 81PVDS_VDIS
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VDS_SERVICE_NOTIFICATION structure
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[MS-VDS]: Virtual Disk Service (VDS) Protocol Specification

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