I really like using zfs at least in my storage systems (nexenta and now TrueNas), but there was a warning in that documentation you linked to suggesting:
WARNING
Note: If you use ZFS, assign at least 16GB RAM to avoid swapping. ZFS (in standard configuration) uses half the Dom0 RAM as cache!
I know that many people run with relatively high RAM these days, but in my case the system will have 16G and 32 if needed. I run several ESXI servers with 16 G of RAM and they perform very well for my Lab work - so I am concerned with that warning… NFS or EXT appear to both support thin provisioning and efficient storage without the warning about eating RAM for swap.
Question: In that scenario is the warning a valid concern? If so, then which would be the next best go to for local machine storage?
Keith