A Note On Multitenancy As A ‘Defining’ Cloud Attribute…
Balakrishna Narasimh and I were discussing the recent hoohaa on Public and Private Clouds when he made an observation on Twitter:
Starting to think public vs private clouds is misleading terminology. more meaningful distinction is single-tenant vs multi-tenant clouds.
I suggested that multitenancy can certainly be an attribute of Cloud deployment, but that I don’t see it as being a differentiator. I responded thusly:
So different business units in an enterprise don’t represent different “tenants?” They can be governed w/ diff. SLA, policy, $
My point here was that trying to use multitenancy as a way to distinguish between Public and Private Cloud deployments ignores the reality that in many large enterprises — many of whom who are beginning to architect and deploy Private Clouds — they think of their business constituencies as individual “tenants.” Each of these “tenants” often have different business requirements, service level requirements, cost structure and chargeback rates, policies, etc.
Food for thought.