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SATA - PATA, "native" - "legacy" (Announce)

posted by RayeR Homepage, CZ, 03.12.2007, 13:22

> Yes. However, the real issue is not SATA vs PATA, it is "native" vs
> "legacy". The old CD-ROM drivers (XCDROM, QCDROM, ...) did support
> "legacy" IDE controllers only, while the newer ones (XCDROM32, UDVD, ...)
> should work with "native" ones as well. It's just that SATA devices are
> often attached to IDE controllers running in "native" mode.
Understand. Unfortunatelly this Dell BIOS doesn't have any additional option releated to mode. I can only enable/disable SATA channel. I can only say that this drive didn't worked with standard atapicd.sys but works with gcdrom.sys so I guess it's native not legacy.

BTW I just have new mobo from Commell and also upgraded disk subsystem. Now I have attached 500GB SATA drive + 120GB PATA through small IDE/SATA adapter and everything works fine under DOS with IDE/combined and even enhanced mode.
I quickly measure transfer rate. Without any DMA tools I got poor 6MB/s but with UIDE.sys I got nice ~50MB/s :)
Before on ITE8211 I got ~25MB/s without DMA (any DMA tool didn't worked on it).

BTW how is possible that ITE controller had much faster transfer rate without enabling DMA than ICH7? I guess it depends on how BIOS will initialize the drives.

---
DOS gives me freedom to unlimited HW access.

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