SAP HANA:The future of database technology The capacity of main memory in servers has continuously increased over the years, whereas prices have dramatically dropped. Today, a single enterprise class server can hold several terabytes of main memory. At the same time, prices for server main memory dramatically dropped over the last few decades. This increase in capacity and reduction in cost makes it a viable approach to keep huge amounts of business data in memory. This section discusses the benefits and challenges. In few words you can understand SAP HANA plus analyzing this evaluation: Typical access speeds Disk 4,000,000 ns Memory 0.4 ns Speed 10,000,000 Falling prices move processing from Disk/SSD to In-Memory In-Memory Computing The elements of In-Memory computing are not new. However, dramatically improved hardware economics and technology innovations in software has now made it possible for SAP to deliver on its vision of the
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