Distributed Filesystem over multible Server
I want to know what the best solution would be to create a distributed file system.
Example of what i want:
I have 6 Servers with 1TB storage each.
I want a filesystem with 3TB storage distributed over these Servers so that one or more Servers can go offline and the files are still accessable.
The Servers are all connected over WAN and the solution should be free or cheap.
The Filesystem should be expandable dynamically.
Is this possible?
How good / bad are the iops?