HP OpenVMS Systems Documentation

Content starts here 8.9 Generic SCSI Class Driver Device Information
HP OpenVMS I/O User’s Reference Manual: OpenVMS Version 8.4 > Chapter 8 Using the OpenVMS Generic SCSI Class Driver

8.9 Generic SCSI Class Driver Device Information

A call to the Get Device/Volume Information ($GETDVI) system service returns the following information for any device serviced by the generic SCSI class driver. (See the description of the $GETDVI system service in the HP OpenVMS System Services Reference Manual.)

$GETDVI returns the following device characteristics when you specify the item code DVI$_DEVCHAR:


Available device


Input device


Output device


Shareable device


Random-access device

DVI$DEVCLASS returns the device class, which is DC$_MISC; DVI$DEVTYPE returns the device type, which is DT$_GENERIC_SCSI.