Sometimes when we look at a hack, its to see how someone chose those parts for the project. In this case, it would have been hard to see it coming. [Janne Jansson] decided to combine a set of measuring cups, a hacked Linksys NSLU2 NAS, and a PS/2 Mouse together to make a self-contained Wind Speed Sensor for his roof. The measuring cups act as wind catchers, which in turns drives the rotation of one of the mouse ball sensors. This data is then logged and transmitted by the NSLU2. The NSLU2 is running a custom Linux based firmware, similar to how OpenWRT works for wireless routers.

To calibrate the device, he also made the best logical choice: to duct tape it to the hood of his car along with a much more expensive wind sensor and use that data to make his own device as accurate as possible. When placed atop his house with a 1500VA 220V UPS, the device managed 250 days of uptime before meeting its demise. Those 250 days also included 5 days of being frozen solid, yet still transmitting (somewhat meaningless) data. All of the relevant code and build instructions are available, for those of you with similar parts to spare.

For those willing to build machines themselves, there are several NAS focused distributions available. FreeNAS is based on FreeBSD and takes up less than 32MB even though it has a full featured web interface. Openfiler can be used for building full fledged NAS/SAN appliances. It can be deployed on bare metal or as a virtual machine and 2.3 has new features like bonding multiple NICs. CryptoNAS is a liveCD that helps you build a user friendly NAS device with full hard disk encryption.

Many consumer NAS devices have chosen to run Linux. This makes them good hacking targets for adding new functionality and we’ve covered many of them in the past. The Linksys NSLU2 “slug” has been very popular. Buffalo has sold many different devices: the Kurobox, Linkstation, and Terastation have a dedicated modification community. We’ve got a LaCie Ethernet Disk mini unopened in our office that was initially purchased because we knew they could be hacked. NAS-Central has a list of many of the other online communities dedicated to NAS devices.

Not that excited about administrating one more Linux box? When Apple released the Time Capsule earlier in the year it introduced the world to high capacity storage that “just works”. Although not exactly server grade, it brought the idea of regular backups to the home user. 1TB is nice, but it’s not upgradeable or easily replaceable; look to the Drobo for that. Drobo has built a fan base by making storage management easy for anyone. Just throw your commodity drives into the box and you’re ready to go. Unfortunately, turning it into a NAS is a $200 addition. They’ve published an SDK, so you should see new applications coming for it soon.

All of these options are just for in house serving, but none of them are true backup solutions since your data still goes away when your house burns down. A couple years ago, [Jeremy Zawodny] looked into moving his backup servers to Amazon’s S3 and compiled a list of tools that work with the service. Jungle Disk is probably the most user friendly. It’s multiplatform and mounts as a local disk. There’s an add-in for Windows Home Server too. If you’re looking to set up a simple personal backup system, we highly recommend [jwz]‘s advice for regular backups.

That’s a fairly thorough rundown of hacker friendly backup options, but we want to know what you use. How do you store, serve, and protect your data? What custom features have you added to commercial NAS devices?