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Wednesday, 3 February 2016

What is Software-Defined?

Moving the Intelligence from specific Hardware to Software is known as Software-Defined.
Software-Defined Storage (SDS)
Software-defined storage (SDS) is an approach to data storage in which the programming that controls storage-related tasks is decoupled from the physical storage hardware.
VMware Virtual SAN

Software-Defined Networking (SDN)
Software-defined networking (SDN) is an approach to computer networking that allows network administrators to manage network services through abstraction of higher-level functionality. The goal of SDN is to allow network engineers and administrators to respond quickly to changing business requirements. In a software-defined network, a network administrator can shape traffic from a centralized control console without having to touch individual switches, and can deliver services to wherever they are needed in the network, without regard to what specific devices a server or other device is connected to. The key technologies are functional separation, network virtualization and automation through programmability.

Juniper Contrail
VMware NSX

Software-Defined Compute (SDC)
With software-defined compute, the computational functions can happen in any number of hardware devices in the cloud, as needed, rather than be assigned to a specific hardware device. In addition, the compute functions can be moved around to different pieces of virtual infrastructure, depending on the availability of resources.

Microsoft Hyper-V
VMware ESXi
Citrix XenServer