[citation][nom]Razor512[/nom]Seems like a decent setup, but the electric bill will be scary running a system like that.But then again, the servers I work on barely use 10TB of storage.[/citation]
Lets see....
I work for HP and we sell a bunch of these for various uses:
http://www.hp.com/go/mds600
Holds 70 x 2TB (and soon to be 3TB) drives in a 5U foot print.
Can easily hold 6 of these in a single rack (840 TB) and possibly a bit more but you have to actually look at things like floor weight at that point.
I am working on a project right now that involves Video Surveillance and the customer bought 4 fully loaded X9720s which have 912TB Useable (After RAID6 and online spares). The full 3.6PB takes 8 racks (4 of them have 10U free but the factory always builds them a certain way).
The scary part is once all their cameras are online, if they record at the higher bitrate offered by the cameras, this 3.6PB will only hold about 60 days worth of video before it starts eating the old data.
They have the ability and long term plan to double or triple the storage.
Other uses are instead of 2TB drives you can put 70 x 600GB 15K rpm drives.
Thats the basis for the high end VDI Reference Architecture published on our web page.
Each 35 drive drawer is managed by a single blade server and converts the local disk to an iSCSI node. Then you cluster storage volumes across multiple iSCSI nodes (known as Network RAID because you are striping or mirroring across completely different nodes for maximum redundancy)
And all of these are only considered mid level storage.
The truly high end ignores density and goes for raw horsepower like the new 3Par V800.
So Yes, I agree with haplo602. Not very high end when comparing to corporate customers.