In the course of my field travels for IBM, I have heard Software Defined Storage referred to as “just marketing talk,” “a re-spin of old technology,” and “adding another layer of complexity to the cloud.”
In this short tech note, I will illustrate the key reasons why Software Defined Storage (SDS) is not only important for enterprise cloud infrastructures, but necessary for enabling:
Software Defined Storage – What is it?
To begin with a simple definition, Software Defined Storage is comprised of two distinct layers: the control plane and the data plane .
The first layer is control plane that provides a central point of intergration as well as common northbound APIs like REST. This layer also provides orchestration and automation tasks to the underlying data storage as requested by the cloud infrastructure. This can be tasks such as automated provisioning, policy management, tiering and monitoring.
The second layer is the data plane. This is a very large bucket which provides different types of storage such as NAS, object, and block storage. Along with the different storage devices, features and functions such as data protection, replication, snapshots and storage networking are key components of this plane.
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