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System Administration Guide, Volume I

Handling Magnetic Tape Cartridges

If errors occur when reading a tape, retension the tape, clean the tape drive, and then try again.

How to Retension a Magnetic Tape Cartridge

Retension a magnetic tape cartridge with the mt command. 


$ mt -f /dev/rmt/n retension

Example--How to Retension a Magnetic Tape Drive

The following example retensions the tape in drive /dev/rmt/1.


$ mt -f /dev/rmt/1 retension
$
Note -

Do not retension non-QIC tape drives.

How to Rewind a Magnetic Tape Cartridge

To rewind a magnetic tape cartridge, use the mt command.


$ mt -f /dev/rmt/n rewind

Example--Rewinding a Magnetic Tape Cartridge

The following example rewindes the tape in drive /dev/rmt/1.


$ mt -f /dev/rmt/1 rewind