Just to add: I tried this with Samsung 980 Pro 2TB (which otherwise had been very fast) to run from the dock's SSD, but: The boot of a Mac Mini from TB3 MiniDock with Samsung 980Pro nvme was terribly slow. Eventually, after some 7 minutes or so the Mac would be up and running and from that moment in time everything was as it should be. The issue is the incompatibility of Apple "trim" command with Samsung SSD firmware. I couldn't fix it (and din't want to spend the efforts with hackintosh) and eventuelly only exchange to Western Digital SN850X could fix it, which however during normal operation is similarly fast.
My fault anyway, should have checked this in advance. But evetually all is well and now I am running a clean install from the docks nvme SSD. All well!
Thanks for all the help @horchoonwai during logistics.
Thank you so much for the kind update, Walter. And you're most welcome on the logistics. Will let others know to go for Western Digital SN850X if they're looking to boot directly from the PCIe NVMe SSD. =)
Just to add: I tried this with Samsung 980 Pro 2TB (which otherwise had been very fast) to run from the dock's SSD, but: The boot of a Mac Mini from TB3 MiniDock with Samsung 980Pro nvme was terribly slow. Eventually, after some 7 minutes or so the Mac would be up and running and from that moment in time everything was as it should be. The issue is the incompatibility of Apple "trim" command with Samsung SSD firmware. I couldn't fix it (and din't want to spend the efforts with hackintosh) and eventuelly only exchange to Western Digital SN850X could fix it, which however during normal operation is similarly fast.
My fault anyway, should have checked this in advance. But evetually all is well and now I am running a clean install from the docks nvme SSD. All well!
Thanks for all the help @horchoonwai during logistics.
Walter
Technically that is possible, Dean.