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

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On Windows Server 2003, Windows Server 2003 R2, Windows Vista, and Windows Server 2008, theparameter will be ignored. Section 3.4.5.2.23.9: On Windows 7 and Windows Server 2008 R2, if the method call is madeusing FAT, FAT32, or ExFAT file system types, and the bEnableCompression parameter is TRUE,VDS_E_COMPRESSION_NOT_SUPPORTED will be returned in the return value of this method call.On Windows Server 2003, Windows Server 2003 R2, Windows Vista, and Windows Server 2008, theparameter will be ignored. Section 3.4.5.2.23.10: On GPT disks, Windows recognizes any partition with theGPT_ATTRIBUTE_PLATFORM_REQUIRED flag set as an OEM partition. On MBR disks, Windowsrecognizes the following partition types as OEM partitions.Value0x12MeaningEISA partition.0x27 Microsoft recovery partition (only recognized in Windows Vista, Windows Server 2008,Windows 7, and Windows Server 2008 R2).0x840xA00xDE0xFEHibernation partition for laptops.Diagnostic partition on some HP notebooks.Dell partition.IBM IML partition. Section 3.4.5.2.23.10: On Windows Server 2003, Windows Server 2003 R2, Windows Vista,and Windows Server 2008, this method MUST return VDS_E_OPERATION_DENIED for a basic disk.For Windows 7 and Windows Server 2008 R2, this method MUST return VDS_E_CLEAN_WITH_DATAfor a basic disk. Section 3.4.5.2.23.10: On Windows Server 2003, Windows Server 2003 R2, Windows Vista,and Windows Server 2008, this method MUST return VDS_E_OPERATION_DENIED for a basic disk.For Windows 7 and Windows Server 2008 R2, this method MUST return VDS_E_CLEAN_WITH_OEMfor a basic disk. Section 3.4.5.2.23.10: On Windows Vista and Windows Server 2008, clean operations cannotbe canceled. The basic provider will return VDS_E_CANCEL_TOO_LATE, and the Dynamic Providerwill return VDS_E_NOT_SUPPORTED. For raw disks that belong to neither provider, VDS will returnVDS_E_CANCEL_TOO_LATE. Section 3.4.5.2.25.1: For MBR-formatted disks, partition size is limited to 2^32 sectors. Forexample, for a sector size of 512 bytes, there is a 2-terabyte limit for partitions. Section 3.4.5.2.25.1: In Windows, if zero is specified the server will determine the alignmentvalue specified in one of the following registry keys underHKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\vds\Alignment, depending on the sizeof the disk on which the volume is created.The values listed in the following table are the defaults that appear after the operating system isinstalled, and may be overridden by an administrator.[MS-VDS] — v20110610Virtual Disk Service (VDS) Protocol SpecificationCopyright © 2011 Microsoft Corporation.Release: Friday, June 10, 2011346 / 360
Disk Size Registry Key Default Value in Registry< 4 GB LessThan4GB 655364 - 8 GB Between4_8GB 10485768 - 32 GB Between8_32GB 1048576> 32 GB GreaterThan32GB 1048576 Section 3.4.5.2.27.3: This method does not return valid values when called withWindows Vista as the client and Windows Server 2008 as the server. Section 3.4.5.2.27.4: On Windows 7 and Windows Server 2008 R2, if the method call is madeusing FAT, FAT32, or ExFAT file system types, and the bEnableCompression parameter is TRUE,VDS_E_COMPRESSION_NOT_SUPPORTED will be returned in the return value of this method call.On Windows Server 2003, Windows Server 2003 R2, Windows Vista, and Windows Server 2008, theparameter will be ignored. Section 3.4.5.2.27.4: On Windows 7 and Windows Server 2008 R2, if the method call is madeusing FAT, FAT32, or ExFAT file system types, and the bEnableCompression parameter is TRUE,VDS_E_COMPRESSION_NOT_SUPPORTED will be returned in the return value of this method call.On Windows Server 2003, Windows Server 2003 R2, Windows Vista, and Windows Server 2008, theparameter will be ignored. Section 3.4.5.2.28.1: On Windows 7 and Windows Server 2008 R2, if the method is calledwith an Options parameter that includes the VDS_ESOF_COMPRESSION flag and a file system typeof FAT, FAT32, or ExFAT, the method will return VDS_E_COMPRESSION_NOT_SUPPORTED. WindowsServer 2003, Windows Server 2003 R2, Windows Vista, and Windows Server 2008 ignore this flag inthe Options parameter. The NTFS file system supports compression. Section 3.4.5.2.30.4: No more than 32 disks are used with a volume; therefore, this valuewill not exceed 31. Section 3.4.5.2.30.4: If the file system on the volume is an NTFS file system, extend the filesystem to fill the newly extended volume. Section 3.4.5.2.30.4: On Windows Server 2003, Windows Server 2003 R2, Windows Vista,Windows Server 2008, Windows 7, and Windows Server 2008 R2 when the Extend operation hascompleted successfully, calling IVdsAsync::QueryStatus returns S_OK in the pHrResult outputparameter, but incorrectly returns 0 in the pulPercentCompleted output parameter. When theoperation has completed successfully, IVdsAsync::QueryStatus is expected to return 100 in thepulPercentCompleted output parameter. Section 3.4.5.2.30.5: Only an NTFS file system or raw volumes support this operation. Thismethod is not implemented on Windows Server 2003 or Windows Server 2003 R2. Section 3.4.5.2.30.5: The Shrink will only work on volumes with an NTFS file system orRAW file systems; otherwise, it returns VDS_E_CANNOT_SHRINK (HRESULT of 0x8004251E). Section 3.4.5.2.30.5: The NTFS file system supports shrinking, the FAT file systems do not. Section 3.4.5.2.30.5: If the file system on the volume supports shrinking, shrink the filesystem following the parameters specified to the method. Section 3.4.5.2.30.5: On Windows Server 2003 R2 when the Shrink operation has completedsuccessfully, calling IVdsAsync::QueryStatus returns S_OK in the pHrResult output parameter but[MS-VDS] — v20110610Virtual Disk Service (VDS) Protocol SpecificationCopyright © 2011 Microsoft Corporation.Release: Friday, June 10, 2011347 / 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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VDS_ESOF_QUICK: Determines whether
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2.2.1.2.21 VDS_LUN_RESERVE_MODEThe
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VDS_VF_NOT_FORMATTABLE: If set, the
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ValueVDS_NF_DISK_ARRIVE0x00000008VD
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wcLetter: The drive letter that tri
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2.2.1.3.10 VDS_ASYNC_OUTPUTThe VDS_
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Value0x4000000000000000GPT_BASIC_DA
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m_bCommandQueueing: A Boolean value
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diskId: The VDS object ID of the di
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MbrPartInfo: Contains information f
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VDS_OT_DISK: The object is a disk.V
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typedef struct _VDS_DRIVE_LETTER_PR
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pSharedSecret: A pointer to an arra
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Corresponding HBA_PORTSTATE value:
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wwnNode: The node WWN for the HBA p
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2.2.2.6.2.2 VDS_ISCSI_INITIATOR_POR
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unsigned long ulFlags;unsigned long
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2.2.2.9.1 Structures2.2.2.9.1.1 VDS
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pwszAdaptorName: The null-terminate
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ValueRemovableMedia0x0000000BFixedM
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style: The value from the VDS_PARTI
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ulFlags: The combination of any val
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VDS_VPT_SPAN = 0x0000000B,VDS_VPT_S
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allocated as the backing store for
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VDS_VST_DETACH_PENDING: The virtual
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} DEPENDENT_DISK_FLAG;DEPENDENT_DIS
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VirtualDeviceType: A pointer to a V
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additional information about the re
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Return value/code0x80042423VDS_E_PR
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Return value/codeDescriptionVDS_E_P
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Return value/codeDescriptionwhen th
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Return value/code0x8004251BVDS_E_VO
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Return value/codeVDS_E_DISK_LAYOUT_
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Return value/code0x80042566VDS_E_IN
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Return value/code0x80042588VDS_E_VO
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Return value/codeVDS_E_ASSOCIATED_P
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Return value/code0x80042815VDS_E_VO
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Return value/code0x8004290AVDS_E_IS
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Return value/code0x80042924VDS_E_RA
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3 Protocol DetailsThe following sec
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ParameterRPC interface UUID forIVds
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Objects can be HBA ports, initiator
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3.1.5 Service Object InterfacesThis
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Methods in RPC Opnum OrderMethodGet
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Methods in RPC Opnum OrderMethodGet
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MethodGetPropertiesDescriptionRetri
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MethodDescriptionOpnum: 3SetImportT
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MethodQueryExtentsConvertStyleSetFl
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All methods MUST NOT throw exceptio
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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
Page 296 and 297: VDSBusTypeiScsi = 0x00000009,VDSBus
Page 298 and 299: } VDS_VOLUME_TYPE;typedef enum _VDS
Page 300 and 301: VDS_OBJECT_IDULONGLONG} VDS_PARTITI
Page 302 and 303: typedef struct _VDS_STORAGE_DEVICE_
Page 304 and 305: } GptPartInfo;[default];};} CREATE_
Page 306 and 307: VDS_PS_UNKNOWN = 0x00000000,VDS_PS_
Page 308 and 309: typedef struct _VDS_FILE_SYSTEM_TYP
Page 310 and 311: typedef struct _VDS_PACK_PROP{VDS_O
Page 312 and 313: OPEN_VIRTUAL_DISK_FLAG_NO_PARENTS =
Page 314 and 315: );[out] unsigned long *pcFetched[he
Page 316 and 317: HRESULT QueryFileSystemTypes([out,
Page 318 and 319: *pInitiatorSharedSecret,[in] VDS_OB
Page 320 and 321: }[]HRESULT CreatePack([out] IVdsPac
Page 322 and 323: HRESULT CreateVolume([in] VDS_VOLUM
Page 324 and 325: [object,uuid(8F4B2F5D-EC15-4357-992
Page 326 and 327: uuid(9882f547-cfc3-420b-9750-00dfbe
Page 328 and 329: );[helpstring("method QueryPlexes")
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Page 334 and 335: 7 Appendix B: Product BehaviorThe i
Page 336 and 337: Supported operating system versionI
Page 338 and 339: •Dynamic disk volumes - The flag
Page 340 and 341: overwritten with "UDF". The first e
Page 342 and 343: Section 3.1.7.1: This interface is
Page 344 and 345: Section 3.4.5.2.18.5: The Windows i
Page 348 and 349: incorrectly returns 0 in the pulPer
Page 350 and 351: Section 3.4.5.2.38.3: Windows does
Page 352 and 353: •Protocol syntax updated due to p
Page 354 and 355: IVdsVolumeMF (section 2.2.2.15 81,
Page 356 and 357: enumerations 70interface 130methods
Page 358 and 359: PVDS_REPARSE_POINT_PROP 81PVDS_VDIS
Page 360: VDS_SERVICE_NOTIFICATION structure
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[MS-VDS]: Virtual Disk Service (VDS) Protocol Specification

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