I'm after some advice for a large data archive/backup system.
I estimate I need storage of about 18TB (+/- 6TB), to act as an archive. This must then be backed up, at least once.
I don't need fast access to it, but I will occasionally need to access a file from it so I need to be able to plug into in to a machine.
If it's expandable, that would be handy.
I'm running a Mac.
Anyone done anything similar and have any advice?