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Dell EMC ScaleIO is a software-defined storage product from Dell EMC that creates a server-based storage area network from local application server storage using existing customer hardware or EMC servers. It converts direct-attached storage into shared block storage.
ScaleIO can scale from three compute/storage nodes to over 1,000 nodes that can drive up to 240 million IOPS of performance. Developers can deploy the ScaleIO software on-prem commodity infrastructure or in the cloud and then port their applications back into a production ScaleIO instance. As of September, 2015, ScaleIO is also available from the company bundled on EMC commodity computing servers (officially called VxFlex Ready Nodes, VxFlex appliance, VxFlex integrated rack).
ScaleIO can be deployed as storage only or as a converged infrastructure combining storage, computational and networking resources into a single block. Capacity and performance of all available resources are aggregated and made available to every participating ScaleIO server and application. Storage tiers can be created with media types and drive types that match the ideal performance or capacity characteristics to best suit the application needs. It is available for free for testing (with community support) or as a paid-for EMC-supported option.