Is this some xBSD or UniFi OS (debian) with ZFSoL? Can't tell from what they've written. 8C+64GB: enough for essential block+file service, but not for dedup and other demanding ZFS features. Also, doesn't appear the controller is redundant; just the power supplies. iSCSI is headlined; nice they didn't limit this to file. No mention of object store, or NVMe-oF.

Seems like a nice, basic, affordable platform for workgroup/SME stuff. Not NetApp/Pure Storage "enterprise" grade though.

They seem to follow the anti-corruption layer model for most of their offerings, so I would expect they use what ever OS is best supported by the upstream.

It is a large reason they can mitigate vendor risk IMHO, offering different tiers of switches as an example without being held hostage by on particular switch IC vendor like many brands.

I do wish someone would take up comstar though, netapp bought and killed several jbod lines etc… to kill it before Oracle bought Sun and also killed it to protect their enterprise storage offerings.

NVMe-oF may be a possibility because there are FPGA IP vendors but without comstar there are some challenges IMHO.

Their other UNAS devices are based on debian11. I'm curious what the bootdrive on the ENAS runs since ZFS is dkms on debian

Could be Linux as well since ZFS on Linux is pretty good now. It would fit in with their other devices which are also Linux based AFAIK.