3/15/72 TAP0 ... TAP7 (IV)





3/15/72                                        TAP0 ... TAP7 (IV)





NAME            tap0 ... tap7



SYNOPSIS        --



DESCRIPTION     These files refer to DECtape drives 0 to 7.

                Since the logical drive number can be manually

                set, all eight files exist even though at present

                there are fewer physical drives.



                The 256-word blocks on a standard DECtape are

                numbered 0 to 577.  However, the system makes no

                assumption about this number; a block can be read

                or written if it exists on the tape and not oth-

                erwise.  An error is returned if a transaction is

                attempted for a block which does not exist.



                Like the RK and RF special files, addressing on

                the tape files is block-oriented.  See the RF0

                section.



FILES           found in /dev



SEE ALSO        /dev/rf0, /dev/rk0



DIAGNOSTICS     --



BUGS            see /dev/rf0



OWNER           ken, dmr
squoze.net
