> > The 1542CF is known to have bad SCSI lines drivers (hardware).
> > In real life you can compare it with a car that has bad brakes and
> > bad tyres.
>
> The problem with the 1542CF is entirely Linux 2.1.x. The C was very
> sensitive to having good termination the CF and CP are not. The driver
> is broken , the hardware is fine.
But being the low price at which we can buy way faster and reliable SCSI
adapters nowadays you may have problems to find a volunteer for
maintaining the driver for such an old horse that in real life had gone to
the abattoir years ago.
> > Support of old devices should be turned to obsolete at the time these
> > devices become not reliable enough for modern systems. We still can
> > support minimal drivers for these devices, but should clearly discourage
> > users to use them on their systems.
>
> Perhaps, but the 1542 is currently sold, maintained and still the fastest
> ISA SCSI controller you are likely to get get.
That's marketing issue. There are still lots of people that think that
the 1542 is a really fast SCSI controller and are ready to buy some. It
is perhaps the fastest of the slowest, but it is actually way slow for any
recent hard disk speed, even for entry level ones.
My experience 4 years ago using a IBM S12:
1542CF: 2.2 MB/second (with some bus on / bus off hack).
53C810: 4.4 MB/second (without any hack).
Gerard.
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