External disk presents new options for IBM i but sometimes the choices may seem overwhelming: External or Internal? Flash, SSD, or HDD? This presentation describes the alternatives for exploiting IBM disk systems with IBM i. Both direct attached and VIOS attached solutions will be discussed. Learn how external disk can meet the high performance requirements demanded by IBM i, about how best to exploit Flash with IBM i, and hear about the integrated high availability solutions that the IBM i provides to exploit the copy services functionality of the IBM storage systems.