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

If the volume resides on a basic disk, the server MUST return VDS_E_NOT_SUPPORTED (HRESULTof 0x80042400).The server MUST then perform the following in sequence. Errors generated in this sequence of stepsare returned in the pHrResult parameter to the IVdsAsync::Wait or IVdsAsyncQueryStatus methods.•Break the volume plex corresponding to the VDS_OBJECT_ID that PlexId specifies for thisvolume.•Create a new volume object that corresponds to the new volume, implements the IVdsVolumeinterface, and assigns it a unique VDS_OBJECT_ID.•Set the new volume object's pack pointer to the pack object that this volume's pack pointerreferences.•Add the new volume object to the list of storage management objects.•Set the volume plex's volume pointer to the new volume object. Set the task-specific returnvalues in the async object to return the values that are associated withVDS_ASYNCOUT_BREAKVOLUMEPLEX (as specified in section 3.4.5.1.9).•Set the return code in the async object to an HRESULT indicating failure or success.•If the task completed successfully, set the percentage completed value in the async object to100.•Set the signal state in the async object to TRUE.The server MUST update the percentage completed value periodically during the precedingsequence. How often the percentage completed is updated, and at what point in the sequence, isimplementation-specific.3.4.5.2.30.8 IVdsVolume::RemovePlex (Opnum 10)The RemovePlex method removes a specified plex from a volume. The last plex of a volume cannotbe removed.HRESULT RemovePlex([in] VDS_OBJECT_ID plexId,[out] IVdsAsync** ppAsync);plexId: The VDS object ID of the volume plex object to remove.ppAsync: A pointer to an IVdsAsync interface that, if the operation is successfully completed,receives the IVdsAsync interface to monitor and control this operation. Callers MUST releasethe interface when they are done with it.Return Values: The method MUST return zero or a non-error HRESULT (as specified in [MS-ERREF]) to indicate success, or return an implementation-specific nonzero error code toindicate failure. For the HRESULT values predefined by the Virtual Disk Service RemoteProtocol, see section 2.2.3.When the server receives this message, it MUST validate the following parameter:•Verify that ppAsync is not NULL.[MS-VDS] — v20110610Virtual Disk Service (VDS) Protocol SpecificationCopyright © 2011 Microsoft Corporation.Release: Friday, June 10, 2011242 / 360