NAME

st − Driver for Sysgen SC 4000 (Archive) Tape Controller

SYNOPSIS

controller sc0 at mb0 csr 0x80000 priority 2
tape st0 at sc0 drive 32 flags 1

DESCRIPTION

The Sysgen tape controller is a SCSI bus interface to an Archive streaming tape drive.  It provides a standard tape interface to the device, see mtio(4), with some deficiencies listed under BUGS below.

FILES

/dev/rst0
/dev/nrst0non-rewinding

SEE ALSO

mtio(4), tm(4S)
Sysgen SC4000 Intelligent Tape Controller Product Specification
Archive Intelligent Tape Drive Theory of Operation, Archive Corporation  (Sun 8000-1058-01)
Archive Product Manual (Sidewinder 1/4" Streaming Cartridge Tape Drive) (Sun 800-0628-01)

DIAGNOSTICS

st%d: tape not online. 

st%d: no cartridge in drive. 

st%d: cartridge is write protected. 

BUGS

The tape cannot reverse direction so BSF and BSR are not available. 

Disk I/O over the SCSI bus will be mostly blocked out when the tape is in use.  This is because the controller does not free the bus while the tape is in motion (even during rewind). 

When using the raw device, the number of bytes in any given transfer must be a multiple of 512 bytes.  If it is not, the device driver returns an error. 

Sun Release 1.1  —  Last change: 9 March 1984