I have a big data solution I am working on and need to store a vast trove of data on disk to be served via a complementary API hosting solution. For the initial deployment, the total amount of data might exceed 2TB, but grow to be twice that or more. High speed read/write times, and preferably, multi-read/write capabilities and built-in redundancy, will be essential for steady and reliable performance. Cost is also somewhat of a concern.
As such, I am looking for suggestions as to which equipment might best be suited for this purpose. Any ideas?