Attempt to configure non-existent drive.

     Occurs on:  SFT I, SFT II, TTS.  This is an Abend error.

     Meaning:    The operating system attempted to configure and utilize
                 a disk drive that is not attached to the system.

     Cause:      This error is caused by physically removing a drive
                 from the file server and not removing it from the
                 operating system's configuration with the INSTALL
                 utility.

     Solution:   Run the INSTALL utility and remove all drives from the
                 operating system configuration that are not physically
                 connected to the server.  If the system has a Disk
                 Coprocessor board installed, the drive configuration
                 set by the DISKSET utility must also agree with the
                 physical disk configuration.