Quantum DLT 8000 Product Manual page 144

Messages
The DLT 8000 tape drive implements both wide data transfer option and synchronous
data transfer option. It negotiates the wide data transfer agreement prior to negotiating
the synchronous data transfer agreement. If a synchronous data transfer agreement is in
effect, then after accepting a WIDE DATA TRANSFER REQUEST message, it resets the
synchronous agreement to asynchronous mode.
The transfer width is two the transfer width exponent bytes wide. The transfer width
that is established applies to all logical units. Valid transfer widths for the DLT 8000
tape drive are 8 bits (m = 00h) and 16 bits (m = 01h). Values of m greater than 01h are
reserved.
4-14 Quantum DLT 8000 Tape System