Alphonsox, on 04 April 2016 - 11:12 AM, said:
Don't discount portable USB drives. My RPi + 2TB Samsung M3 portable drive combination takes around 5W when idle, which is most of the time.
My RAID 1 drive uses a couple of 2.5" laptop drives and only uses a few watts when it fires up, which isn't that often. 99% of the time that drive sits idling, drawing virtually no power. It's USB powered, normally from the Mini-ITX box that acts as the home server. Newer 2.5" drives seem to be pretty thrifty with power, but can't match the power or performance of the little SSD. when running flat out that needs about 1W, when idling it's around 0.2W, but it's a fair bit faster than a conventional drive. I have 64 bit Linux Mint running on it at the moment, as I'm using it as the main PC over at the new house, and that really does fire up very quickly indeed. I know that Linux always boots a LOT faster than Windows (my old Asus laptop is running Linux Mint on an i7 processor and has an SSD and that is much quicker to boot or resume than Windows, too). It seems the SSD really does make a fair difference, as the newly rebuilt Mini-ITX box boots a heck of a lot faster than it did when it was running the old Via motherboard and 2.5" HDD, yet that was running a cut-down basic Linux distro, with just enough to get it to work as a file server.
Edited by jsharris, 04 April 2016 - 11:24 AM.