GBSCSI - A cheap(er?) solution to replacement storage

[GRudolf94]

So, a while ago I designed these, and they've finally been cleaned up and tested enough for release (well, some variants):

GitHub - GeorgeRudolf/GBSCSI2: Affordable SCSI Disk Emulator - upgrade over the original GBSCSI

Affordable SCSI Disk Emulator - upgrade over the original GBSCSI - GeorgeRudolf/GBSCSI2

github.com

Why: I wanted a board done my way. Figured I might as well. I can get drives for my countless janky UNIX workstations, the occasional desktop Mac PCB, and PowerBooks, all with a single design. I might be biased, but I think it's a neat design and a decent compromise between quality/layout/signal integrity, price and form factor.

At the time, standalone RP2040 2.5/3.5", Pi Pico 2.5/3.5", Pi Pico 3.5" HDD footprint and DB25 variants were designed, plus a carrier card that fits SCA connectors in workstations which I haven't yet had the opportunity to test and verify mechanics on.

Turnkey units are available from https://decromancer.ca (a friend's store, no further affiliation - I am not making money selling these).

Comments and feedback are welcome.

 

[Phipli]

Mmmm poptart.

 

[ScutBoy]

Will be watching to see when the SCA variant(s) are avaiable!

 

[beachycove]

Do you have some benchmarks?

 

[GRudolf94]

Will be watching to see when the SCA variant(s) are avaiable!

I don't plan on integrating the SCA connector to a separate variant - not unless the carrier board doesn't work

Do you have some benchmarks?

Running ZuluSCSI firmware, it should bench the same - about 9ish MB/s read, if the host can go the distance. Half the devices I plan on using it for only do SCSI-1 and, as such, are stuck at 5MB/s, so no good machine for benchmarks on my end.

 

[ScutBoy]

I don't plan on integrating the SCA connector to a separate variant - not unless the carrier board doesn't work

Running ZuluSCSI firmware, it should bench the same - about 9ish MB/s read, if the host can go the distance. Half the devices I plan on using it for only do SCSI-1 and, as such, are stuck at 5MB/s, so no good machine for benchmarks on my end.

Carrier board is fine