Best storage I can get? FastATA MK-VI 4000 CF/SATA

[QuikSanz]

Good Question. I have Cyberstorm MkIII and UWide SCSI drives or SATA converters for them are not easy to come by.

Chris

[QuikSanz]

The FastATA with the latest ROMs will be no faster than a good SCSI-2 setup at <10 MB/s despite the PIO mode of 4 on a mode 4 drive.  The Zorro 3 Bus tops out at 13 MB/s and I suppose some intensive CPU cycles in multitasking overhead conversion accounts for the rest.  The SCSI-3 bus on the CS MK3 and CSPPC will yield up to 35 MB/s if you decide to trade up; of note these CS devices use the accelerator bus.  Using a Compact Flash 2.0 device with 100 ns minimal cycle time in mode 5 still goes no faster in my testing.  I'm just guessing that a GREX 4000 board. that also bypasses the Zorro 3 (actually Buster limited), with the drivers for an IDE or SCSI card might get you higher transfers than a Zorro board.

So in my case it's, will a 15000 RPM UW SCSI be faster or a SATA drive W/converter be better?
Those SCSI drives are getting a bit old now.

Chris

[QuikSanz]

LOL not on the best days.He is using a cyberstorm MKII which is narrow 50 pin scsi rated 10MB/s. What they don't show you is the cpu overhead the Fastata has. SCSI is very cpu friendly in most case(proper scsi on the accelerator). zorro3 scsi will have more overhead.
the Cyberstorm MKIII/PPC ultrawide scsi will walk off and leave all these behind.
Sysinfo is not a good test for disk speed either.

I don't have the ppc option but sounds best to try and get a larger UWSCSI drive and stick with that.

Chris