Installed and setup my first ever Home / Small Office NAS device this weekend.
Connected with three PCs, via wireless Network 300MB. Two WD Green 1TB hard disks have been configured as RAID-1 (mirrored). Performance for read and write is good and solid.
NAS is not a PC. It's much smaller and quieter and less electricity consumed. It also supports slow spin after a few minutes inactivity, and wake up on LAN features, or totally power off it in cron setting.
However, NAS is not a private cloud. It doesn't have application layer on the top. Though, it can installed added-on application like streaming, photo sharing, and pre-installed a torrent client, 256MB memory and a less powerful processor is not good enough for intensive cloud computing.
I used to have hard disk enclosure connected to PC via USB port and shared on the network. The problem is USB device can't have multiple simultaneously access, and burning a 200W power consumed PC is horrendous just for file sharing.
Now the money invested:
• Netgear RND 2000: $215
• Two WD 1TB hard disks: $174
Less than $400 you can have a NAS solution at home / small office is unbelievable. Think about several years ago, NAS solution is only available for big corporates with the price tag around one hundred thousands dollars. New technology changes quality of the life you and me.
I've been running a WD World 1TB for years. You can get SSH into it (I think it's TinyLinux), and I've had it running Transmission.
However, it has had stability issues, so I've wondered about other, lower watt, cheap, hacker friendly solutions.
Why 1TB disks, money mate!
I have two of the 3TB disks portable, with the intention of one for off-site backup (family videos, photos, etc). The 3rd is in my recently setup "server" PC. On that I store media that needs to be accessed semi-regularly. Thus far (Ubuntu 12.04) I've not experienced any problems; touch wood!