tm(4) - NetBSD Manual Pages

Command: Section: Arch: Collection:  
TM(4)                 NetBSD/vax Kernel Interfaces Manual                TM(4)


NAME
tm -- TM-11/TE-10 mag tape device interface
SYNOPSIS
controller tm0 at uba? csr 0172520 vector tmintr tape te0 at tm0 drive 0
DESCRIPTION
NOTE: This driver has not been ported from 4.4BSD yet. The TM-11/TE-10 combination provides a standard tape drive interface as described in mtio(4). Hardware implementing this on the VAX is typified by the Emulex TC-11 controller operating with a Kennedy model 9300 tape transport, providing 800 and 1600 BPI operation at 125 IPS.
DIAGNOSTICS
te%d: no write ring. An attempt was made to write on the tape drive when no write ring was present; this message is written on the terminal of the user who tried to access the tape. te%d: not online. An attempt was made to access the tape while it was offline; this message is written on the terminal of the user who tried to access the tape. te%d: can't change density in mid-tape. An attempt was made to write on a tape at a different density than is already recorded on the tape. This message is written on the terminal of the user who tried to switch the density. te%d: hard error bn%d er=%b. A tape error occurred at block bn; the tm error register is printed in octal with the bits symbolically decoded. Any error is fatal on non-raw tape; when possible the driver will have retried the operation which failed several times before reporting the error. te%d: lost interrupt. A tape operation did not complete within a reason- able time, most likely because the tape was taken off-line during rewind or lost vacuum. The controller should, but does not, give an interrupt in these cases. The device will be made available again after this mes- sage, but any current open reference to the device will return an error as the operation in progress aborts.
SEE ALSO
mt(1), tar(1), ht(4), mt(4), mtio(4), ts(4), ut(4)
HISTORY
A tm driver appeared in Version 6 AT&T UNIX.
BUGS
May hang if a physical (non-data) error occurs. NetBSD 7.1.2 June 5, 1993 NetBSD 7.1.2
Powered by man-cgi (2021-06-01). Maintained for NetBSD by Kimmo Suominen. Based on man-cgi by Panagiotis Christias.