Good post by George Crump (thank you)
Initiatives like server virtualization, cloud infrastructure-as-a-service, and real-time analytics are allowing IT to meet today’s ever-increasing business demands. These initiatives are designed to bring agility to the data center, yet they trip and fall when they have to interact with the silo’ed storage infrastructure. Software Defined Storage (SDS) was supposed to be the answer. But for the most part, SDS is really storage software without the reliance on dedicated hardware, and is limited to specific storage containers. Most SDS solutions cannot extend a container across vendors, formats (file, block, object) or protocols. Even hyper-converged systems don’t help. They attempt to solve this problem by moving all enterprise data into a bigger and proprietary container at the server layer.
Read on here