Thanks Andrea for the continued work and improvements! Just upgraded my server, so far so good.
in my snapraid config I just followed their examples and it worked, I have : data d1 /mnt/data/data1/ data d2 /mnt/data/data2/ data d3 /mnt/data/data3/ data d4 /mnt/data/data4/ data d5 /mnt/data/data5/ data d6 /mnt/data/data6/ data d7 /mnt/data/data7/ data d8 /mnt/data/data8/ data d9 /mnt/data/data9/ data d10 /mnt/data/data10/ Hope that helps.
I use Snapraid with mergerfs for my media/file server it's been fine. Only suggestion is stop any data change during a sync, this is not a solution for heavy i/o file servers. Slow changing media servers is the use case. I moved my backups to an ESOS SAN storage box I built to avoid heavy changes to the snapraid media server.
yes I have found you need to be careful when running sync as any files being added, changed, moved during the sync will cause issues.