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3.2.5.5.1 Receiving a Virtual Disk File Information Request

When the server receives a request OperationCode equal to RSVD_TUNNEL_GET_INITIAL_INFO_OPERATION, the request handling proceeds as follows:

If MaxOutputResponse is less than 40 (size of SVHDX_TUNNEL_OPERATION_HEADER + size of SVHDX_TUNNEL_FILE_INFO_RESPONSE), the server MUST fail the request with STATUS_BUFFER_TOO_SMALL.

The server MUST issue a file information request to the virtual SCSI disk in an implementations-specific manner, and update the received response to the client.

If the virtual SCSI disk indicates an error, the server MUST fail the request with the error received by placing it into the Status field of the SVHDX_TUNNEL_OPERATION_HEADER, and return the header to the client.

Otherwise, the server MUST construct an SVHDX_TUNNEL_FILE_INFO_RESPONSE structure as specified in section 2.2.4.14 with the following values:

The SVHDX_TUNNEL_OPERATION_HEADER MUST be initialized as follows:

  • OperationCode MUST be set to the OperationCode value of the request.

  • Status MUST be set to STATUS_SUCCESS

  • The RequestId field MUST be set to the value received in the request.

The SVHDX_TUNNEL_FILE_INFO_RESPONSE structure MUST be initialized as follows:

  • ServerVersion MUST be set to the ServerServiceVersion.

  • SectorSize MUST set to the sector size of the shared virtual disk received from the virtual SCSI disk.

  • PhysicalSectorSize MUST set to the physical sector size of the shared virtual disk received from the virtual SCSI disk.

  • VirtualSize MUST set to the virtual size of the shared virtual disk received from the virtual SCSI disk.

The response MUST be sent to the client.

 
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