@IamSpartacus
I am curious on the path you went on this, i have been using OMNIOS for a long time TBH lately with the news that they were changing and Freenas Coral going the way they were going i am not sure which rabbit hole i want to go down anymore. I am still thinking FreeNAS due to their compatibility to Mellanox Adapters ConnextX-3 (40Gbe) adapters..
Just wanted an outside opinion that went through a similar deal. I never seemed to get the greatest NFS performace from OMNIOS and also if DNS went down OMNI would crap itself even with a /etc/hosts file if the DC's went offline... i get Random spikes in latency too even though i'm running good ZIL and Cache devices...
I have about 30TB of Data on my Current OMNI system and plan to add about another 30TB