Microsoft SQL Server Virtual Backup Device Specification
VDC_Command Client Command Inputs
This table provides the client command inputs for VDC_Command.
| Field | Type | Value |
|---|---|---|
| Command Code | UINT32 | This is an operation code. |
| Buffer | PTR | This is the address of the data transfer area. |
| Size | UINT32 | This is the number of bytes to transfer. This field is overloaded for some commands. |
| Position | UINT64 | This is the device position to locate. |