Hi! I think it would be nice to collect some statistics on low-powered nodes to have some data on what’s the lowest reasonable requirements for a node.
I’ll start with my Thinkpad X61: Intel Core 2 Duo T7300 (nominal CPU Mark rating: 717, but SMP is disabled and the CPU is downclocked from 2GHz to 800MHz, so I’d estimate the current rating at maybe 200), 4 GB RAM, internal 1TB drive and an external 6TB CMR drive.
The node on the internal drive is long full and don’t get much traffic, but the external one is about half-full and gets around 500kB/s to 1MB/s for few days now. CPU usage is at about 15% to 20%, memory at 500MB used (both nodes + OS +
streamripper running). So I suspect an even slower CPU would be enough as well—but then, C2D were one of the first amd64 Intel CPUs, so much older CPUs wouldn’t be able to run Docker.
As I wrote before, about 25W at the wall.
What are your stats? Please post only low-power devices (Xeons are not low-power ;-))