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What is the Cloud Data Management Interface (CDMI), and what does it have to do with data storage? ESG senior analyst Terri McClure delves into the technology.
The Cloud Data Management Interface (CDMI) is the centerpiece of an effort the Storage Networking Industry Association (SNIA) defines as “the functional interface that applications will use to create, retrieve, update, and delete data elements from the Cloud.”
An interface such as this is the key to standardizing how we’ll create and manage cloud storage data objects. It also holds huge potential for cloud storage.
Currently, most cloud storage service providers use a proprietary object storage interface. These proprietary interfaces are similar -- they’re all RESTful, with basic “put,” “get” and “delete” commands -- but they each use different semantics. It’s like the French spoken in Paris and the French you hear in Quebec. Many words and phrases are identical, but enough differences exist to make communication difficult, unreliable and sometimes even impossible.
This was first published in September 2012