Orion_ wrote:it would be nice to port this to regular C language, no more mandatory .NET bloated runtime required ..
Regular C would certainly be more efficient, but much less portable. Regardless, the source code is available to all so anyone can port it if they wish.
ZeroG1972 wrote:I have several questions: someone would have already tested, if yes is it viable ?
.NET Core supports ARM Linux, so yes it is possible. I don't have a Pi to test with but you've piqued my interest

I'm currently working on providing Linux binaries (x64 and ARM) as soon as possible, so keep checking the new releases.
ZeroG1972 wrote:Is the transfer rate sufficient compared to an old Protar ACSI?
I don't know that specific drive, but serial communication is always going to be slower than an actual disk. "Sufficient" is subjective. You'll just have to try it once it's available and decide for yourself.