3.1.4.13 Application Requests Creating a CDP Snapshot
The application provides:
A handle to the Open identifying a VHD set.
TransactionId: A GUID used to uniquely identify the start operation.
Stage 1 value
Stage 2 value
Stage 3 value
Stage 4 value
Stage 5 value
Stage 6 value
SnapshotId: A GUID to uniquely identify the snapshot.
LogFileID: A GUID to identify the log file.
The client MUST construct an SVHDX_META_OPERATION_START_REQUEST structure, as specified in section 2.2.4.17, as follows:
The SVHDX_TUNNEL_OPERATION_HEADER MUST be initialized as follows:
The OperationCode MUST be set to RSVD_TUNNEL_META_OPERATION_START.
The Status field MUST be set to zero.
The RequestId field MUST be set to RequestIdentifier.
The SVHDX_META_OPERATION_START_REQUEST MUST be initialized as follows:
The TransactionId field is set to the application-provided TransactionId.
The OperationType field is set to SvhdxMetaOperationTypeCreateSnapshot.
The Data field is set to an SVHDX_META_OPERATION_CREATE_SNAPSHOT structure initialized as follows:
The SnapshotType field is set to SvhdxSnapshotTypeCDP.
The Stage1 field is set to the stage 1 value provided by the application.
The Stage2 field is set to the stage 2 value provided by the application.
The Stage3 field is set to the stage 3 value provided by the application.
The Stage4 field is set to the stage 4 value provided by the application.
The Stage5 field is set to the stage 5 value provided by the application.
The Stage6 field is set to the stage 6 value provided by the application.
The SnapshotId field is set to the SnapshotId provided by application.
The ParametersPayloadSize field MUST be set to 0.
The CdpParameters field is set to an SVHDX_META_OPERATION_CREATE_CDP_PARAMETER structure initialized as follows:
The LogFileNameOffset field is set to the byte offset of the LogFileName field.
The LogFileId field is set to the LogFileID provided by the application.
The LogFileName field MUST be set to an empty array.
The client MUST call the interface specified in [MS-SMB2] section 3.2.4.20.11, supplying the following input parameters:
Application-provided handle to identify the Open.
Control code: FSCTL_SVHDX_ASYNC_TUNNEL_REQUEST.
SVHDX_META_OPERATION_START_REQUEST structure as payload.