AR(4S) — System Manager’s Manual — Special Files
NAME
ar − Archive 1/4 inch Streaming Tape Drive
SYNOPSIS
device ar0 at mb0 csr 0x200 priority 3
DESCRIPTION
The Archive tape controller is a Sun ‘QIC-II’ 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/rar0
/dev/nrar0non-rewinding
SEE ALSO
mtio(4), tm(4S)
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)
Sun 1/4" Tape Interface − User Manual (Sun 800-0415-01)
DIAGNOSTICS
ar%d: would not initialize.
ar%d: already open. The tape can be open by only one process at a time.
ar%d: no such drive.
ar%d: no cartridge in drive.
ar%d: cartridge is write protected.
ar: interrupt from unitialized controller %x.
ar%d: many retries, consider retiring this tape.
ar%d: %b error at block # %d punted.
ar%d: %b error at block # %d.
ar: giving up on Rdy, try again.
BUGS
The tape cannot reverse direction so BSF and BSR are not available.
The system will hang if the tape is removed while running.
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 System Release 1.0 — 11 August 1983