this post was submitted on 28 Nov 2023
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main thing to note is that NFS is an object based storage (acts like a share) where iSCSI is block based (acts like a disk). You'd really only use iSCSI for things like VM disks, 1:1 storage, etc. For home use cases unless you're selfhosting (and probably even then) you're likely gonna be better off with NFS.
if you were to do iSCSI I would recommend its own VLAN. NFS technically should be isolated too, but I currently run NFS over my main VLAN, so do what ya gotta do
Yeah, there are a few limitations to each. NFS, for example, doesn't play nicely with certain options if you're using a filesystem overlay (overlays), which can be annoying when using it for PXE environments. It does however allow you to mount in several remote machines simultaneously, which I don't think iSCSI would play nicely with.
SMB though has user-based authentication built in, watch can be quite handy esp if you're not into setting up a whole Kerberos stack in order to use that functionality with NFS.