Shared-disk architecture
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A shared disk architecture (SD) is a distributed computing architecture in which each node is independent and self-sufficient, and there is no single point of contention across the system, popular in clustered data systems. More specifically, the disks are accessible from all cluster nodes. Hence, any node can access any piece of data and any single piece of data has no dedicated owner.
For more content, read here --> http://www.benstopford.com/2009/11/24/understanding-the-shared-nothing-architecture/
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