Client Supported Commands

Microsoft SQL Server Virtual Backup

Microsoft SQL Server Virtual Backup Device Specification

Client Supported Commands

This is a list of commands that are supported by the client, depending on features selected in the configuration. An X indicates that the command must be supported by the client. An O indicates that the command is optional. VDC_Discard is optional in all configurations.

Command
(VDC_x)
Pipe-like Tape-like Disk-like Disk-like (removable)
VDC_Read X X X X
VDC_Write X X X X
VDC_ClearError X X X X
VDC_WriteMark   X    
VDC_SkipMarks   X    
VDC_SkipBlocks   X    
VDC_Load O X   X
VDC_Rewind   X    
VDC_GetPosition   X    
VDC_SetPosition   X X X
VDC_Discard O O O O
VDC_Flush X X X X
VDC_Snapshot O O O O
VDC_MountSnapshot O O O O