Piventory: LJ Tech Editor’s Personal Stash of Raspberry Pis and Other Single-Board Computers

It’s like an extra-geeky episode of Cribs featuring single-board
computers.

I’m a big fan of DIY projects and think that there is a lot of value
in doing something yourself instead of relying on some third party. I
mow my own lawn, change my own oil and do most of my own home repairs,
and because of my background in system administration, you’ll find
all sorts of DIY servers at my house too. In the old days, geeks like
me would have stacks of loud power-hungry desktop computers around and
use them to learn about Linux and networking, but these days, VMs and
cloud services have taken their place for most people. I still like
running my own servers though, and thanks to the advent of these tiny,
cheap computers like the Raspberry Pi series, I’ve been able to replace
all of my home services with a lot of different small, cheap, low-power
computers.

Occasionally, I’ll hear people talk about how they have a Raspberry Pi
or some other small computer lying around, but they haven’t figured out
quite what to do with it yet. And it always shocks me, because I have a house full of
those small computers doing all sorts of things, so in this article, I
describe my personal
“Piventory”—an inventory of all of the little low-power computers that
stay running around my house. So if you’re struggling to figure out
what to do with your own Raspberry Pi, maybe this article will give you
some inspiration.

Primary NAS and Central Server

In “Papa’s
Got a Brand New NAS”
I wrote about my search for a replacement
for my rackmount server that acted as a Network-Attached Storage (NAS)
for my house, along with a bunch of other services. Ultimately, I found
that I could replace the whole thing with an ODroid XU4. Because of its
octo-core ARM CPU, gigabit networking and high-speed USB3 port, I was
able to move my hard drives over to a Mediasonic Probox USB3 disk array
and set up a new low-power NAS that paid for itself in electricity costs.

In addition to a NAS, this server provides a number of backup services
for my main server that sits in a data center. It acts as a backup mail
server, authoritative DNS, and it also provides a VPN so I can connect to
my home network from anywhere in the world—not bad for a little $75
ARM board.

Figure 1. Papa’s New NAS

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