ts —
TS-11/TSV-05 mag tape interface
The TS-11/TSV-05 combination provides a standard tape drive interface as
  described in vax/mtio(4).
  The TS-11 operates only at 1600 BPI, and only one transport is possible per
  controller.
The TS-11 is attached to an UNIBUS, and the TSV-05 is attached to
    a Q22 bus.
  - ts%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.
- ts%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.
- ts%d: error at bn%d.
- An error occurred on the tape at block bn; status
      register and controller state is printed in hex and decimal.
Thets driver appeared in
  4.1BSD.
A new ts driver showed up in
    NetBSD 1.2.