Build Your Own Private Cloud Storage

Many small and medium businesses are doing at least some storage in the public cloud, especially with disaster recovery in mind. But you still need at least some storage locally. You can go with a SAN (Storage Attached Network) that is expensive and complicated or you can consider something much easier and simpler.

That something is a Drobo storage system. Drobo, which sounds like a good name for a robot, is a deceptively advanced hard disk storage solution that uses standard 3.5” SATA disk drives of pretty much any capacity. The deceptive part is that this appears to be just some simple multi-bay drive case. You can plug in more drives at any time. You can pull drives out at any time. You can even pull out a 1 TB drive and replace it with a 2 TB drive at any time.

Sounds convenient, but what kind of administrative nightmare lies behind swapping all those drives in and out. None at all. It’s truly plug and play... or I should say plug and store. You don’t have to log into any admin panel and start typing arcane command lines to make things work. All of that is automated and invisible to you, the user.

You are, indeed, building your own private storage cloud and it stays on your premises. There’s no worry about having sufficient bandwidth to access data in real-time because this unit sits on a desk or mounts in a rack and connects to your local network.

You are no doubt familiar with RAID (Redundant Array of Independent Drives), a technique of interconnecting multiple hard drives so that the failure of one drive will not cause you to lose data. Drobo’s system goes even farther. They call it BeyondRAID. The difference is that with Drobo you can use drives of any size and they don’t have to be the same. Grab half a dozen SATA drives at random and plug them into the Drobo box. The system automatically sets them up for redundant storage with the combined capacity being your storage pool. It’s not a matter of the smallest disk defining the storage pool or virtual hot spare.

You can see how this is similar to the cloud philosophy in that you don’t need to be concerned about the mechanics of how to get all those disparate disk drives to work in harmony. That’s built into the operating system. If you start to run out of room, just plug another drive into an empty bay. Oh, your bays are all full? OK. Just yank out the smallest drive and replace it with a larger one. The system will automatically accommodate the drive change, give you the extra capacity and not lose any information in the process.

You can even upgrade the drive system at will. Move up from a 9 bay system to a 12 bay system for up to 24 TB of local storage. Pull your drive out of the old case and plug them into the new one. Oh, oh. You forgot which drive was in which slot? No problem. Just plug them into any open slot, include any new ones wherever there is room and you are good to go. The status lights will all light green when the system has sorted things out and is ready to use.

Does this sound a bit too simple to be true? Well, you’ll just have to read the material and watch the demonstration videos to see for yourself. Drobo units start at just 4 bays for small office use (with however many drives you care to plug in) and go up from there.

Note: Photo of open hard disk drive courtesy of Wikimedia Commons.

Drobo Mr. Storage Roboto

What gets sucked up faster than excess bandwidth? Disk drive space, that's what. If all you did was word processing and spreadsheets, one of those 150 GB drives would last forever. But with digital cameras saving multi-Megabits per picture and videos making still photos look puny, there's no such thing as too much disk.

Replacing a disk drive with a bigger one or even adding more drives has its own challenges. The more Gigabytes you have, the more you have to backup or risk losing it all to a fatal head crash. If graphic design or video production is your occupation, you can spend substantial amounts of time protecting your work from untimely loss. What you need is an assistant to take of that. if fact, what you could really use is a personal robot.

Well, here's your robot. It's called Drobo, the "world's first storage robot." Drobo is a self-contained black cube of electronics with 4 open slots for SATA drives. You plug 'em in and Drobo takes care of disk management.

It almost looks like a hard drive juke box. But Drobo is a lot more sophisticated than that. It not only combines storage capacity from multiple drives, it secures your data from hardware failure. How does it do that?

At this point, I can imagine a legion of terrified insects all screaming "RAID". Funny, but not it. RAID or Redundant Array of Inexpensive or Independent Disks, is a technique of spreading data across several disk drives instead of concentrating it on a single drive. Files are not only spread over several disks, but redundant information is also written so that the file can be recovered if one of the drives crashes.

Drobo does something similar called SAFE for Secure, Automated, Flexible, Expandable. An advantage over RAID systems is that you can mix drives of various capacities and Drobo doesn't care. It works with whatever capacities you plug in. Like RAID, if a drive "goes south" you don't lose your data. A red light comes on and you pull out the bad drive and plug in a new one. You don't even have to fill the four slots. Start out with one or two drives and add more as you need them. Blue lights on the box tell you how much capacity you've used up.

Like any redundant storage system, Drobo uses substantial amounts of your disk drives for redundant data protection. A combination of drives that add up to 1.5 TB give you 929 GB of actual storage. That could easily be worth it as the robot does all the work.

Data Robotics put a lot of effort into making Drobo behave as much like an independent robot as possible. You don't have to worry about configuring anything or managing the processes. You plug it in, connect to a USB port, add some drives and away you go. When the drives are ready, Drobo lights green indicators next to them. Somewhere in its robotic brain, Drobo is keeping track of drive health and making sure that you don't lose anything. If you notice a flashing red light, replace that drive. It's a goner.

Drobo works with PCs and MACs through a USB port, or you can buy the optional Droboshare accessory that turns it into networked storage over a 10/100/1000 Ethernet connection. Find out more about the Drobo Fully Automated SATA Robotic Storage Array 4 Bay USB 2.0 and read the user reviews to see if this product is right for you.