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Software defined storage: A trend for virtualizing data storage? By Aditya Abeysinghe Software defined storage (SDS) is a storage model that separates software used in storage media from the hardware. SDS uses software that controls the hardware and network resources used in data storages. This allows storage to be added or removed without depending on the hardware. The main benefit of this model is flexible storage and maintenance of storage in devices using software. The methodology used Different types of SDSs exist and the methodology used depends usually on the type. A type of SDS is storage virtualization. In this type, a hardware-based storage is used and software is used to virtualize this storage such that it can be used by different processes and monitored centrally. Using virtualization, SDS creates virtual disks which are shown as different storage units within the same hardware storage. This method will also use management ...