If you want really vast storage, and we really do mean vast, the Spectra TFinity ExaScale could be just the ticket. You’ll need an equally big room to fit it in though!
The word “exascale” is one of those terms made up by marketing people to imply something grand and ambitious without actually saying anything very specific. Often, they’re overblowing terms for fairly everyday things. In the case of Spectra Logic’s Tfinity, it would take a hard heart to complain about overblown sales copy, though, because it’s big. Very big.