How is Software Defined different than what we have now?
Well it's Tuesday again, and you know what that means? IBM Announcements!
Today, IBM announced an exciting new addition to the IBM System Storage™ product line, [IBM Spectrum Storage™], a family of software defined storage offerings.
To understand its significance, I need to explain a few things first. Software defined storage is part of a larger concept of software defined environment.
How is software defined environment different than what you have now? In every data center, you need to map business requirements of an application workload with an appropriate set of IT infrastructure, including server, network and storage resources.
The traditional approach involves an application owner or database administrator reviewing the business requirements documented for the application, calling the server, network and storage administrators, who match those requirements to appropriate IT hardware and notify the folks in facilities to rack and stack the gear accordingly.
In a software defined environment, Application Programming Interfaces (API), Service Level Agreements (SLA) and Orchestration workflows can automate the request for the appropriate resources. This is referred as the "Control Plane".
Responding to these requests, the software can provision the appropriate server, network and storage resources required. Server, network and storage virtualization, standard interfaces and deployment technologies exist to make this practical. This is referred to as the "Data Plane".
Any time new a way of doing things is introduced into the world, there could be some resistance. Let's tackle the three most frequently stated objections:
These concerns are addressed well enough in software defined environments, in general, and with IBM Spectrum Storage family of products, in particular.
(Nostalgia: I remember the days before self-service automation. At the bank, I had to stand in line at the bank until I could to talk to a human bank teller to get cash from my savings account. At the gas station, human gas attendants would come out and pump the gas for me, check my oil and wash my windshield. And at a restaurant, I felt like I waited an eternity from the time I ordered my meal to the time the human short-order cook had it ready and human wait staff delivered it to my table. These all seem silly today, doesn't it?)