As for migration, you might be able to create a degraded pool initially, copy over the data, and add the parity disk last.

I actually asked in the TrueNAS forum about this idea. According to some knowledgeable users this might work. For anyone interested, details here. The next major release (planned for end of October), should make this easier.

The Ryzen 9000 series is releasing on the 15th. The 9600X might also be worth a look for $279 (according to AMD).

Edit: scratch that. The first reviews are out and it doesn’t look good for the new CPUs

The components are well balanced. You might want to take a look at PSU Cultists Tier List.

Maybe take a look at the Thermalright (Peerless) Assassin CPU Coolers. They are testing well and are very affordable.

Lastly, you should make sure your mainboard has everything you need (M.2 slots, RAM slots, …). Upgrading a mainboard is not that much money.

Logseq + Syncthing for Linux and Android