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

Providers and Packs: The client invokes IVdsSwProvider::QueryPacks to obtain a list of the packsthat the provider maintains. The server responds with an IEnumVdsObject interface, whichenumerates a list of IUnknown interfaces, one for each pack. The client invokesIUnknown::QueryInterface to retrieve an IVdsPack or IVdsPack2 interface on the pack object.Packs and Disks: The client invokes IVdsPack::QueryDisks to obtain a list of the disks in the pack.The server responds with an IEnumVdsObject interface, which enumerates a list of IUnknowninterfaces, one for each disk in the pack. The client invokes IUnknown::QueryInterface toretrieve an IVdsDisk, IVdsDisk2, IVdsDisk3, IVdsAdvancedDisk, IVdsAdvancedDisk2,IVdsDiskPartitionMF, IVdsDiskPartitionMF2, IVdsCreatePartitionEx, IvdsDiskOnline, orIVdsRemovable interface on the disk object.Packs and Volumes: The client invokes IVdsPack::QueryVolumes to obtain a list of the volumes inthe pack. The server responds with an IEnumVdsObject interface, which enumerates a list ofIUnknown interfaces, one for each volume in the pack. The client invokesIUnknown::QueryInterface to retrieve an IVdsVolume, IVdsVolume2, IVdsVolumeOnline, orIVdsVolumeShrink interface on the volume object.Volumes and Plexes: The client invokes IVdsVolume::QueryPlexes to obtain a list of the plexesfor a volume. The server responds with an IEnumVdsObject interface, which enumerates a list ofIUnknown interfaces, one for each plex that is associated with the volume. The client invokesIUnknown::QueryInterface to retrieve an IVdsVolumePlex interface on the plex object.Plexes and Extents: The client invokes IVdsVolumePlex::QueryExtents to obtain a list of theextents for a specified plex. The server returns a list of VDS_DISK_EXTENT structures, one foreach extent in use by the plex.Volumes and Drive Letters: The client invokes IVdsService::QueryDriveLetters to obtain a list ofdrive letters on the system. The server returns a list of VDS_DRIVE_LETTER_PROP structures;the volumeId member indicates the volume that is associated with the drive letter.Volumes and Reparse Points: For the IVdsVolume interface, the client invokesIUnknown::QueryInterface to retrieve an IVdsVolumeMF interface. The client then invokesIVdsVolumeMF::QueryReparsePoints to obtain a list of mount points on the volume. The serverreturns a list of VDS_REPARSE_POINT_PROP structures; the SourceVolumeId memberindicates the mounted volume. For example, for drive D mounted to C:\MountD, drive D is themounted volume.Volumes and Access Paths: The client invokes IUnknown::QueryInterface to retrieve anIVdsVolumeMF interface. The client then invokes IVdsVolumeMF::QueryAccessPaths to obtaina list of user mode path names for the volume. The server returns a list of drive letters and mountpoints for the volume. For drive D mounted to C:\MountD, drive D is the mounted volume andC:\MountD is the mount point.Volumes and Supported File System Formats: The client invokes IUnknown::QueryInterface toretrieve an IVdsVolumeMF2 interface. The client invokesIVdsVolumeMF2::QueryFileSystemFormatSupport to obtain a list of file systems that aresupported for the volume. The server returns a list ofVDS_FILE_SYSTEM_FORMAT_SUPPORT_PROP structures, one for each file system that issupported on the volume.Disks and Extents: The client invokes IVdsDisk::QueryExtents to obtain a list of the extents for aspecified disk. The server returns a list of VDS_DISK_EXTENT structures, one for each extent onthe disk. Alternatively, the client invokes IVdsDisk3::QueryFreeExtents to obtain a list of the freeextents for a specified disk. The server returns a list of VDS_DISK_FREE_EXTENT structures, onefor each extent on the disk that is associated with free space on the disk.[MS-VDS] — v20110610Virtual Disk Service (VDS) Protocol SpecificationCopyright © 2011 Microsoft Corporation.Release: Friday, June 10, 2011145 / 360