So assuming 1TB M.2 devices, you'll get 1TB * 7 * 4 = 28TB of storage in that stack, vs 8TB * 4 = 32TB of storage in the spinning rust solution. 40TB for 10TB

So assuming 1TB M.2 devices, you'll get 1TB * 7 * 4 = 28TB of storage in that stack, vs 8TB * 4 = 32TB of storage in the spinning rust solution. 40TB for 10TB spinnies.