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API Guide
2-880 API Functions 601355 Rev A
Return Values
VSCMD_DriveQuery returns:
•VSE_TRUE
- Successful execution if the API is operating in
synchronous mode
- Good initial status received if the API is operating in
asynchronous mode
• VSE_FALSE - The request failed. A return code of
VSE_FALSE (which is 0) means the request failed.
- To determine where the error occurred, and what the
error was, the client queries the request’s error handle
(with VS_Error_GetFields) to retrieve the error
handle’s object code.
- If the object code value is VSE_NONE, the client must
query the global error code (VSG_Error) to
determine where the error occurred.
• VSE_ERR_BADHANDLE - Specified handle was not a
valid command handle.
• VSE_ERR_NULLHANDLE - Specified handle was a null
pointer.
- If the object code value is VSE_VOLSERV, the error
occurred in VolServ and the client uses
VST_ERROR_NUMCODE to identify the specific error.
VSID_USER_FIELD (VST_USER_FIELD) Value to put in USER_FIELD for this request.
USER_FIELD is a 16-character field provided
for user information. Information entered in
this field is echoed back to the user in every
status message returned for this request.
Neither the API software nor VolServ uses
USER_FIELD.
Parameter Type Description