The Ftape Installation and Usage Guide - Configure ftape
The following options are understood by all FDC driver modules i.e. by
ftape-internal.o, trakker.o and bpck-fdc.o.
ft_fdc_threshold=DEC0,DEC1,DEC2,DEC3
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Set the FIFO threshold of your FDC DEC#X takes values between
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ft_fdc_rate_limit=DEC0,DEC1,DEC2,DEC3
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Set the maximum allowable data rate for the FDC. DEC#X has to be
one of |
ft_fdc_rate_limit and ft_fdc_threshold are useful in case
you find `reduced data rate because of excessive overrun errors'
messages in your kernel log files. In this case, try first to increase
the FIFO threshold, and if this doesn't help try to set the
ft_fdc_rate_limit to a lower value. Try 1000 for QIC-3020
tape drives (i.e. TR-3) and 3000 for the Ditto Max.
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