You're not stating if you have U2SCSI, but I assume you don't. So I can
assume you are messing up MB/s and MXfers/s: The MB/s are derived from
MXfers/s and the actual transfer width. So, 20 MXfers/s on a narror bus are
20 MB/s, 20 MXfers/s with a 16bit wide transfer gives 40 MB/s (which is what
you can probably achieve with the 20 MHz setting), a 32 bit wide transfer
would offer 80 MB/s, but I doubt your equipment actually does 32 Bit
transfers.
In any case, the NEGOTIATION is done in MXfers/s (5 is "standard", 10 is
Fast, 20 is Ultra, regardless of width, and Width is 8 for "standard", 16
and 32 are for Wide scsi, regardless of Ultra/Fast), so 20 MB/s seems very
reasonable and is nothing which could limit your SCSI performance.
--
Matthias Andree
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<mandree@dosis.uni-dortmund.de> <<< /finger/ this
<m_andree@line.org> <<< mail, subject "SEND PGP-PUBLIC-KEY"
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