Interesting cheap low power system. My brain connects "NAS" with "Data I value" and there isn't anything in the author's system that is focused on enhancing the

Interesting cheap low power system. My brain connects "NAS" with "Data I value" and there isn't anything in the author's system that is focused on enhancing the data integrity. Not saying that is bad, just saying it's the thing that often makes commercial NAS system both more expensive and more power consumptive. I've got an 8 drive RAID-6 setup as a ZFS pool[1]. More power, last I checked about 50W when idle, close to 150W when "working", but I think at this point I've had failures in nearly every piece that ended up replacing something but never lost any data, never corrupted any files. Replaced the power supply, the mother board, and two drives. I haven't had to replace any memory but I do have an extra stick "spare" because that is the kind of thing that ages out and is hard to replace (it's DDR3 memory but I've had systems with DDR2 so really hard to get DIMMS for). That said, I do see a lot of value in low power systems like that of the author and run a couple. The way I do the energy calculation though is that I boot them off internal storage (MMC/SD) and then mount a root filesystem from the NAS. That way they don't have any storage power cost directly, they are easy to replace, and the power consumed by my NAS is amortized over a number of systems. giving it some less obvious economics. [1] It is an iXSystems FreeNAS based system.