SMT(1) — Silicon Graphics

NAME

smt − streaming magnetic tape manipulation 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 tape device /dev/rmt2. 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 information about the tape unit. (Count is ignored.)

retension
Retension the tape cartridge installed in the drive. (Count is ignored.)

erase Erase the tape cartridge in the drive. (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 returns a 1 if the command was unrecognized, and 2 if an operation failed. Smt without any arguments prints the help command.

FILES

/dev/rqicraw magnetic quarter inch cartridge tape drive

/dev/nrqicno rewind quarter inch cartridge tape drive

/dev/nrmt1no rewind quarter inch cartridge tape drive

/dev/rmt2no rewind quarter inch cartridge tape drive

/dev/rmt1default raw magnetic quarter inch cartridge tape drive

BUGS

Smt sleeps when accessing the tape if tape is busy and awakes only after the tape is closed from a previous operation.