If you just want cold storage, you can put 10TB of compressed textual data on a spinning hard drive. If want to run some processing of that data within a workda

If you just want cold storage, you can put 10TB of compressed textual data on a spinning hard drive. If want to run some processing of that data within a workday, you need multiple drives in parallel (still possible on a single server). However, if you want to process it in less than 30 mins you need a cluster.