Silicon Graphics IRIS Workstation, User Manual

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Version 1.0 - 1 - October 1984
SMT(1) Silicon Graphics SMT(1)
NAME
smt - streaming magnetic tape manipulating program
SYNOPSIS
smt [ -t /dev/tapename ] command [ count ]
DESCRIPTION
Smt is used to give commands to a Quarter Inch streaming magnetic tape
drive. If a tape name is not specified, the default tape drive is used. Smt
uses the default tape device /dev/rmtioctl . By default smt performs the
requested operation once. Operations may be performed multiple times by
specifying count .
The tape default device has the ioctl minor to facilitate the use of opening
and reading the tape when either using a no rewind device or a standard
rewind and write file mark on close of the tape device.
The available commands are listed below. Only as many characters as are
required to uniquely identify a command need be specified.
eof
Write count end-of-file marks at the current position on the tape.
fsf Forward space count files.
fsr Forward space count records.
rewind
Rewind the tape ( Count is ignored.)
status
Print status intormation about the tape unit. ( Count is ignored.)
help
Print command usage information about the command. ( Count is
ignored. )
Smt returns a 0 exit status when the operation(s) were successful, smt will
return a 1 if the command was unrecognized, and 2 if an operation failed.
Smt without any arguments will print the help command.
FILES
/dev/rqic Raw magnetic Quarter Inch Cartridge Tape drive
/dev/nrqic No rewind Quarter Inch Cartridge Tape drive
/dev/nrmt* No rewind Quarter Inch Cartridge Tape drive
/dev/rmtioctl Default Raw magnetic Quarter Inch Cartridge Tape drive
BUGS
Smt will sleep when accessing the tape it tape is busy and will awaken only
after the tape is closed from a previous operation. Smt will do some very
standard things to the tape when using the standard devices such as
/dev/rqic or /dev/rmt* and might do some very nasty things not intended by
the user, unless very careful when using smt .
SEE ALSO
smtio(4).