Microsoft SQL Server Virtual Backup Device Specification
Command Inputs
This table shows the command inputs that are required.
| Command (VDC_x) |
Buffer | Size | Position | Completion Routine |
|---|---|---|---|---|
| VDC_Read | X | X | X | |
| VDC_Write | X | X | X | |
| VDC_ClearError | X | |||
| VDC_WriteMark | X | |||
| VDC_SkipMarks | X | X | ||
| VDC_SkipBlocks | X | X | ||
| VDC_Load | X | X | ||
| VDC_Rewind | X | |||
| VDC_GetPosition | X | |||
| VDC_SetPosition | X | X | ||
| VDC_Discard | X | |||
| VDC_Flush | X | |||
| VDC_Snapshot | X | |||
| VDC_MountSnapshot | X |