Arrrgh! (FastATA 4000 MK-VI 8.0 and issues with keyboard.)

[mechy]

SCSI 2 rocks on amiga, the MKI scsi claims to do 7MB/async and 10MB synchronous. It will be much lower over head on the cpu compared to the fastata i would imagine.
A fastlane z3 card on zorro3 would do about the same speed also(more overhead on z3 bus however).

Ide has always been terrible and cpu intensive, its the nature of the beast. POI especially.
I'm surprised you guys didnt just use scsi and a acard scsi bridge to use the cf on these setups? Its very reliable.

[mechy]

Yeah, it certainly seems that a 10k drive would drive the peak of performance.  I wish I could boot the Amiga off of the UW SCSI card I have.. well and that I had an extra PCI slot for it.  Or even if the Cyberstorm MK1 had a UW scsi module.  

Quick question, so would the DMA on the Z3 bus be as fast (potentially) as the CPU style expansions?  I would tend to think not, but not sure.

slaapliedje

The UWscsi on the csppc and cs MKIII is absolutely great. Don't dismiss scsi2 on a accelerator(or fastlane z3) though, it will still beat the fastATA without a sweat.
Mediator scsi/sata cards cant do DMA since the mediator doesn't DMA to the amiga.
SCSI on the accelerator is always the best way(well in 99% of the cases). z3 will incur some overhead of course and will use more cpu time.
The next best scsi would be the zorro3 Fastlane Z3. I have a few of these cards and they easily do 8MB/s with the right drives or scsi bridge+cf.
The fastata was always infamous for having trouble running in higher pio modes. PIO IDE is just a bad way to do it imho. UDMA ide would of made more sense for a zorro3 card(if it could also dma to the amiga).

[mechy]

That's right!  Thanks for reminding me of that.  It's actually kind of funny when you think about the design of the Amiga and computers in general.  Really with modern day computers, the biggest bottleneck to performance is the Hard drive, SSDs are finally starting to do away with that, though PCIe Flash storage certainly is the fastest way to go (also really pricey!).

Sad that the Zorro 3 bus is crippled by the Buster chip in such a way.  Would be nice if someone could/would develop a replacement.

That was the reason for having scsi on the accelerator,it made it local bus and bypassed the zorro2/3 bottleneck.

Then again, most of these type of projects kind of fall into the category of getting a 1973 stingray loaded up with a modern engine, and eventually you may end up replacing the engine with an electrical one... then it just will no longer purr the same.

Then again, the normal Amiga 'purr' is one thing I'd like to get away from!  :laughing:  Even without the full speed, the silence of the CF Card rules... now if only I could get the newer ClassicWB to work with my Mediator...

If you ever had a csppc or MK3 in that amiga you would love it. Nothing wrong with updating old stuff, no need to ignore technology,but some so called newer tech is better than others. A buster update would of been nice but if memory serves,brigette was also in need of fixing because it was slow and causes a memory bottleneck,hence why a4000 motherboard memory is slower than it should be.


slaapliedje[/QUOTE]