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

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3 Protocol DetailsThe following sections specify details of the VDS Remote Protocol, including abstract data models,interface method syntax, and message processing rules.3.1 InterfacesAll VDS interfaces that are listed in this section inherit the IUnknown interface. For all VDSinterfaces, method opnum field values start with 3; opnum values 0, 1, and 2 represent theIUnknown::QueryInterface, IUnknown::AddRef, and IUnknown::Release methods, respectively. Formore information, see [MS-DCOM] section 3.1.1.5.8.The interfaces in this section are listed in the following order:•Generic object interfaces: Enumeration Object Interfaces (section 3.1.1) through AsynchronousOperation Object Interfaces (section 3.1.3).•Service object interfaces: Service Object Interfaces (section 3.1.5) through HBA Port ObjectInterfaces (section 3.1.6).•Provider interfaces: Provider Object Interfaces (section 3.1.9).•Pack interfaces: Pack Object Interfaces (section 3.1.11).•Disk interfaces: Disk Object Interfaces (section 3.1.12).•Volume interfaces: Volume Object Interfaces (section 3.1.13).•Volume plex interfaces: Volume Plex Object Interfaces (section 3.1.14).This order reflects the logical hierarchy of objects in VDS. For more information, see section 3.4.1.To retrieve the interfaces of a particular object, call the QueryInterface method on the DCOMIUnknown interfaces of the object. For more information, see [MS-DCOM] section 3.1.1.5.8.Unless otherwise specified, all methods MUST return zero or a nonerror HRESULT (as specified in[MS-ERREF]) on success, or an implementation-specific nonzero error code on failure (see section2.2.3 for more information on the HRESULT values predefined by the Virtual Disk Service RemoteProtocol).Unless otherwise specified, client implementations of this protocol MUST NOT take any action on anerror code, but rather, return the error to the invoking application.The set of required and optional interfaces is organized into five groups. Group 1 is the required setof interfaces. Groups 2 through 5 are optional sets of interfaces.If one interface from an optional group is implemented, all interfaces in that group MUST beimplemented.The groups form an additive set: Group 1 is required. If one interface from group 2 is implemented,all interfaces in group 1 and group 2 are implemented. If one interface from group 3 isimplemented, that implies that all interfaces in groups 1, 2, and 3 are implemented.Group 1[MS-VDS] — v20110610Virtual Disk Service (VDS) Protocol SpecificationCopyright © 2011 Microsoft Corporation.Release: Friday, June 10, 2011116 / 360
ParameterRPC interface UUID forIEnumVdsObjectRPC interface UUID forIVdsAdviseSinkRPC interface UUID for IVdsAsyncRPC interface UUID forIVdsServiceLoaderRPC interface UUID for IVdsServiceRPC interface UUID forIVdsServiceInitializationRPC interface UUID forIVdsProviderRPC interface UUID forIVdsSwProviderRPC interface UUID forIVdsHwProviderRPC interface UUID for IVdsPackRPC interface UUID for IVdsDiskRPC interface for UUID forIVdsAdvancedDiskRPC interface UUID forIVdsRemovableRPC interface UUID for IVdsVolumeRPC interface UUID forIVdsVolumeMFRPC interface UUID forIVdsVolumePlexCOM class UUID for the VDSservice object classUsed to create a VDS session (seesection 4.1.1)Value118610B7-8D94-4030-B5B8-500889788E4E8326CD1D-CF59-4936-B786-5EFC08798E25D5D23B6D-5A55-4492-9889-397A3C2D2DBCE0393303-90D4-4A97-AB71-E9B671EE27290818A8EF-9BA9-40D8-A6F9-E22833CC771E4AFC3636-DB01-4052-80C3-03BBCB8D3C6910C5E575-7984-4E81-A56B-431F5F92AE429AA58360-CE33-4F92-B658-ED24B14425B8D99BDAAE-B13A-4178-9FDB-E27F16B4603E3B69D7F5-9D94-4648-91CA-79939BA263BF07E5C822-F00C-47A1-8FCE-B244DA56FD066E6F6B40-977C-4069-BDDD-AC710059F8C00316560B-5DB4-4ED9-BBB5-213436DDC0D988306BB2-E71F-478C-86A2-79DA200A0F11EE2D5DED-6236-4169-931D-B9778CE03DC64DAA0135-E1D1-40F1-AAA5-3CC1E53221C37D1933CB-86F6-4A98-8628-01BE94C9A575Additive set of interfaces thatMUST be implementedGroup 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 1Group 2117 / 360[MS-VDS] — v20110610Virtual Disk Service (VDS) Protocol SpecificationCopyright © 2011 Microsoft Corporation.Release: Friday, June 10, 2011
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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:
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 88 and 89: } DEPENDENT_DISK_FLAG;DEPENDENT_DIS
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 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
Page 138 and 139: MethodDescriptionOpnum: 3FormatAddA
Page 140 and 141: 3.1.13.7 IVdsVolumeOnline Interface
Page 142 and 143: MethodDescriptionOpnum: 6MergeExpan
Page 144 and 145: Virtual Disk Providers and Virtual
Page 146 and 147: For a VDS_DISK_EXTENT or VDS_DISK_F
Page 148 and 149: 3.2.1.4 DisksIVdsAdvancedDisk::GetP
Page 150 and 151: pointer to the virtual disk object
Page 152 and 153: 3.3.2 TimersNone.3.3.3 Initializati
Page 154 and 155: 3.4.1.1 Service ObjectThe service o
Page 156 and 157: •If the disk is a removable drive
Page 158 and 159: When the client calls a method to r
Page 160 and 161: •If the signal state is TRUE and
Page 162 and 163: 3.4.5.1.3 Adding Disk ObjectsThe se
Page 164 and 165: 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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