The Question is:
Whats with the OpenVMS DCL Dictionary dumentation for Lexical Function F$DEVICE
for Disks. Table DCLI-8 Values Returned by the DEVTYPE. Item "14 TU58" and
"47 TU56" both don't look like disks to me.
The Answer is :
The TU56 and TU58 devices are the DECtape tape and the DECtape II cartridge
tape devices, respectively. Both of these tape devices are fully capable
of random read-write access, and are thus (correctly) classed as disks.
For additional details on the TU58 cartridge tape device, please see the
OpenVMS I/O User's Reference Manual.