Drobos have been around for more than a decade long before there was such a thing as NAS.
As photographer, I heard about Drobos when I was still using film, because of the problem with digital photo files kept on an ordinary hard drive, have a more than 50% chance of the file being corrupted in ten years’ time. Drobos beyond raid means your files are being moved around the disk constantly. Drobos have a serious reputation in the photography world as backup storage, but almost unknown to most people. If you are looking at doing more things, like hosting, streaming there are more suitable bit of kit out there.
I looked into building myself a server out of left over parts, or an HP Microserver, but IMHO, in terms of cost, I had to go with the Drobo FS at £290. To build a 5 bay, raid 5, upgradeable, two disk redundancy server/NAS with software for the same money is a tough call.
My FS is still in its box, as I am currently saving up to buy 3 x Barracuda XT 3TB Hard Drives - ST32000641AS and a gigabyte switch. I will be logging my build in September, so I will let you know how I got on.
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AsRock Z68 Ex4 G3, [email protected], Ballistic Tracers 16GB,
5850 1GB(CFX), CM90 II Advanced, Crucial M4 256GB, 4 HDDs,
NH-D14, XFX 850W BE, Xonar Essence STX, BlackGold HD DVB.