For anyone interested in creating one of these into a NAS you MUST have a look at unRAID software, the free version only supporst 3 drives but i think it has advantages to other software solutions, to post a few from another site:
Disregard the 40TB but if you want to read that thread here it is: http://www.avforums.com/forums/networking-nas/1347547-smurfs-monster-40tb-unraid-nas-build.html
Also i found some other interesting info which means you could make the beast take 6 drives by converting the esata to an internal sata but that requires you to reflash the bios otherwise the esata wont run at full speed, more info on that can be found here: http://www.avforums.com/forums/networking-nas/1429720-tims-7-24tb-tiddler-unraid-nas.html Another thing is that you would have to somehow put the drive in a case externally unless you can find a 2.5inch drive that big
This has become my project, but i will only be able to start in three weeks unfortunately!
unRAID
+ Try buying a 40TB NAS for a grand (without discs). You can't, because they dont exist at this level. With unRAID you can have up to 40TB of data space whilst retaining single drive failure, for less than a grand - mine will end up being 32.58TB to be exact as the useable space on a 2TB drive is 1.81TB, and I'll be using 2 drives for parity and cache.
+ Lose two drives at once? You'll lose data for sure, but only on those drives and NOT the whole array. Big plus.
+ More efficient for space than RAID setups - you basically have one parity drive and the rest are data.
+ Full control of what data goes on what drives - there is no striping
+ Incredibly flexible shares
+ Ability to "pre-clear" discs - checked and written with zeros, which means when you're ready to add it to the array, the storage expands within a few seconds.
- Write speeds slow in comparison to normal RAID - 30mbps without a cache drive, although this is on a big transfer which you generally only have to do once. A cache drive can increase this to 50mbps apparently.
- No true hotswap capability (although I have hotswap drive cages, I can't pull any out or put any in while the server itself is booted)
- Dual parity doesn't exist yet, so no matter how big your array is, you can only have one drive fail at a time (I believe this is being worked on though.
Honestly, unRAID has been a pleasure to install, and the user community is excellent.
Disregard the 40TB but if you want to read that thread here it is: http://www.avforums.com/forums/networking-nas/1347547-smurfs-monster-40tb-unraid-nas-build.html
Also i found some other interesting info which means you could make the beast take 6 drives by converting the esata to an internal sata but that requires you to reflash the bios otherwise the esata wont run at full speed, more info on that can be found here: http://www.avforums.com/forums/networking-nas/1429720-tims-7-24tb-tiddler-unraid-nas.html Another thing is that you would have to somehow put the drive in a case externally unless you can find a 2.5inch drive that big
This has become my project, but i will only be able to start in three weeks unfortunately!