June 9, 1993 CT 4 hp300

### NAME

ct - CS/80 cartridge tape interface

### SYNOPSIS

ct0 at hpibbus? slave ?

### DESCRIPTION

The cartridge tape interface as found in the 7946 and 9144 products provides a standard tape drive interface as described in mtio(4) with the following exceptions:

1. There is only one density.

2. Only the ``raw'' interface is supported.

3. The ```MTIOCTOP` ioctl(2) is limited. In particular, the command, ```MTFSR` is not supported.

4. The ```MTIOCGET` ioctl(2) is not supported.

5. The record size for read and write operations must be between 1K and 64K inclusive.

Special files ```rct0` through ```rct3` refer to rewind on close interfaces to drives 0 to 3. Files ```rct4` through ```rct7` refer to no-rewind interfaces. Files ```rct8` through ```rct11` refer to streaming rewind on close interfaces. (Only 9144 type devices can stream.) Lastly, ```rct12` through ```rct15` refer to streaming no-rewind interfaces.

### SEE ALSO

mt(1), tar(1), mtio(4)

### BUGS

Read and writes of less than 1024 bytes will not behave as expected.