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Software defined storage
By Alex McDonald, SNIA Europe Board of Directors, DMTF OSDDC member, NetApp.
YOU’D HAVE TO BE LIVING in a cave not to have heard the latest IT buzzword; software defined. I first heard this phrase at a seminar about two years ago in the context of work Stanford University was doing on SDN (storage defined networking). Even back then, there were the rumblings of extending it out to include and define SDS (software defined storage) and an encompassing SDDC (the software defined datacenter).
So while SDN and now SDS and SDDC is an evolutionary product of that earlier thinking and the direct result of considering how we can best manage and control virtualization and Cloud technologies, the SDDC term was only coined recently.
Before we can discuss SDS, it’s important that we get some kind of idea what we mean by SDDC.
SDDC
has been defined in a number of
ways, with various definitions competing for attention. But while there are already various management standards that exist for physical, virtual and cloud-based systems, the industry is currently lacking
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standard architectures and definitions to describe the abstract, pooled resources of the Software Defined Data Center.
That’s not unexpected in the early stages of the development of an idea into working technology. To bring clarity, members of the DMTF (a standards body with a varied and wide membership of the great and the good in the IT industry) set up the
OSDDC (Open Software Defined Data Center Incubator at
http://www.dmtf.org/ news/pr/2013/5/dmtf-address-need-open- software-defined-data-center-standards) to identify standards required, possible architectures and definitions to describe the emerging technologies that are expected to revolutionize IT infrastructure in the coming years.
So how does the DMTF OSDDC define SDDC?
“The SDDC domain is proof of the continuing evolution of virtualization through cloud computing into SDDC technologies. Cloud computing was the new operational model for IT Services built upon foundational and fundamental virtualization technologies.While cloud computing uses virtualization technologies and/or converged
Infrastructure as a Service (IaaS) approaches, it is still focused on the delivery and consumption of IT Services. SDDC, as the next phase in the
evolution of this entire technology domain, promises to deliver more intelligent services, better management solutions and value on top of these commodity and standardized hardware platforms.
“An SDDC is a data center or cloud computing infrastructure in which all elements of the infrastructure
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