The Software-Defined Data Center

Software-Defined Storage (SDS)

Software-Defined Storage (SDS) is the vision that storage services are dynamically created and delivered per VM and controlled by policy. VMware’s SDS model shifts the operational model of storage from the bottoms-up array-centric approach of today’s storage to a tops-down VM-centric model. As a result storage services are precisely aligned with application requirements.

Benefits of Software-Defined Storage:

  • Faster provisioning. Provisioning of storage becomes extremely fast and simple. Infrastructure and data service do not require complex pre-configurations as the right storage service is created dynamically.
  • Granular dynamic control of service levels across heterogeneous resources. Adjusting service levels to an app is as simple as changing a policy. The underlying service delivery dynamically adjusts accordingly.
  • Simplified operations and troubleshooting. Storage virtualization eliminates the notion of hard mapping of roles and responsibilities has been eliminated and replaced with automatic enforcement and monitoring of policies.
  • Flexible resource management. All components are separable. For instance, the data plane could be replaced without disrupting the data services or the control plane.
  • Agility with control. Infrastructure teams can define classes of services by exposing policy tiers to end-users. Compliance and charge back are simplified.
  • Increased asset utilization. Composed services will be more precise and aligned on application boundaries. An application container’s storage services are also much better aligned, delivering exactly what’s needed, when it’s needed.

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