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SCSI2SD - Comparison of SCSI SD, CF, and HDD performance

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Reply 60 of 64, by feipoa

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Those are pretty incredible speeds when put into the context of what we are achieving here on the 486SXL - around 2 MB/s.

Plan your life wisely, you'll be dead before you know it.

Reply 61 of 64, by dragonkn

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I got sd to ata (40pin) common Sintechi adapter for pc.
I'm a little lazy and i have question if i can use clonezilla or other backup utility and transfer image from hdd to SD ata. Can it work?

Reply 62 of 64, by rjbrown99

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Can the folks doing benchmarks also please share their scsi2sd and card BIOS configs? IE - how do you have the SCSI speed limits set, are you enabling SCSI2 mode, for the BIOS on the card are you limiting it to 5MB/s or allowing 10MB/s?

Asking as my 1540CP required the BIOS to be set at 5MB/sec to properly detect my card/drive (with a SCSI2SD v6 model).

Thanks in advance.

Reply 63 of 64, by feipoa

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Everything was set at the optimal settings. I wasn't using any limits. It is at 10 MB/s.

Could you be running the 1540CP with DMA at the full bus clock instead of BUSCLK/2? This should be a motherboard BIOS setting.

Plan your life wisely, you'll be dead before you know it.

Reply 64 of 64, by rjbrown99

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My motherboard has a very limited set of options, it's an ISA-only board with a 1991 BIOS. Right now the 1540CP is set to 5MB/s and the SCSI2SD is set to "No limit (safe)" but with "Enable SCSI2 Mode" checked.

I'll benchmark it as-is with the working config and see if I can adjust one or both to get to 10MB/s.

My working (but slow) config is attached in case anyone else stumbles across the thread. I also found that it was best to disable termination in SCSI2SD and let the Adaptec card handle it. This is for a Sandisk 16GB SD card split into two similarly sized ~7.5 gig drives.