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Looking at Database Clouds from Both Sides Now

By Carl Olofson – 1 Comment

When the term first came to be applied to a style of managing information technology and delivering its capabilities as a service, it was assumed that a Cloud architecture contained three key ingredients: virtualized physical resources, elasticity (the ability to scale resources for any service either up or down), and multi-tenancy, or the ability for a given service to support many clients without any client having any visibility to any of the others. Since then, however, the term has come to be applied in two distinct ways: one having to do with how any Cloud service is architected internally, and the other having to do with how the service is perceived externally. This post considers how SAP HANA, Oracle Exadata, and IBM PureData address the internal or inside view on the one hand, or the external or outside view on the other.

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