Hi Lee Eric,

> Is there any SATA driver available on DOS can access SATA hard drivers?

The short answer is that you do not need one: You may have
experienced that older versions of Windows cannot see your
SATA drives. This problem does not affect DOS, because DOS
simply uses your BIOS to access drives. The long answer is
that drivers such as UIDE which Bernd mentioned and which
can be found on   http://johnson.tmfc.net/dos/driver.html
may give you faster than BIOS access to your SATA harddisk.

This is as today, the BIOS is often only used for booting,
so it can happen that speed is not optimal. This can also
be the case for USB sticks, flash drives, memory cards and
card readers and other things which you can boot from with
a modern BIOS - the speed in particular on USB can be low.

Bret Johnson and Georg Potthast both have DOS USB drivers
to solve that problem, but I think only Bret's driver can
do USB 2.0 speeds. Also, I am not sure whether UIDE works
in AHCI mode. I also think no DOS driver yet uses the NCQ
system where modern multitasking operating systems queue
multiple concurrent read/write requests and let the disk
itself decide how to process them in an efficient order.

Eric

PS: The related xcdrom, gcdrom and gxcdrom drivers, plus
maybe again UIDE, also support ATAPI and SATA CD/DVD/BD.



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