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8.1.3.4: `/dev/qft*', `/dev/nqft*'

When used with these tape devices the driver emulates file marks using a volume-table segment according to the QIC-113 standard (http://www.qic.org). The driver doesn't use compression unless compression is switched on using the MTCOMPRESSION ioctl (see MTCOMPRESSION).

Note: the driver automatically recognizes tapes with the `Linux raw format V*' label and denies any write access to such tapes unless the tape is located at BOT. One also may use

mt -f /dev/qft0 erase

which will damage the data on such tapes (well, at least the first data segment which is zeroed to be used as volume-table). Anyhow, old ftape-2.x tapes still can be read, and one also has complete file mark support (for reading).


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