Some HP Vertica and some Actian Vectorwise. Vertica scales to multiple nodes better and HP is a much more accepted vendor. I've got friends who are doing a lo

Some HP Vertica and some Actian Vectorwise. Vertica scales to multiple nodes better and HP is a much more accepted vendor. I've got friends who are doing a lot of Redshift (which is repackaged ParAccel). Start with Redshift if you are new to columnar. If you can afford it, Microsoft's new PDW looks like a much richer functionality columnar store.