What is Software Defined Storage? pools of storage with data service characteristics that may be applied to meet the requirements specified through the service management interface.

You want to improve disk space usage efficiency while maintaining high availability.
In this scenario, which solution satisfies this requirement?

Which level of data access does a SAN device provide compared to NAS? or it emulates one or more disks) that connects to its clients using Fibre Channel and a block data accessprotocol such as SCSI.

Which type of cloud allows management of backups to local, public, and/or private clouds to meet the varying requirements of cost, availability, latency, and security? requirements of cost, availability, latency, and security.

Software Defined Storage (SDS) uses which type of technology to function?