I just read
http://scn.sap.com/community/cloud/blog/2014/08/04/moving-to-the-cloud–what-the-hell-is-cloud-computing by @Kunal_Pandya
It’s a good piece about the benefits of cloud. And it does a great job of explaining some terminology. However, I came across one bit that I just couldn’t let go.
“What % of your customers are on the latest version of your software?”.
If the answer is less than 100%, it is not multi-tenant.
Four times a year SuccessFactors would answer less than 100%. Why? Because some companies have paid to be upgraded slightly later than others so as to ensure that if they are any issues, they are less likely to see them.
Also within SuccessFactors customers, many would not be using the latest tools. Why? Because they have opted not to run those areas, as change management is costly and they don’t see the need, yet. Are they running the latest version – arguably yes and no, they have access to it, but certainly they are multi-tenant within the data centre.
Within the HANA Cloud Platform, one has the option to run an application/database without downtime for 6 months – it will continue to run on the version of the software that was released at the time the application was started. However, the platform is updated every 2 weeks. Bounce your application and it will pick up the newest runtime. Clearly not every customer is using the latest version of the solution. Is the solution multi-tenant? This is perhaps a harder one to answer as even within the same data centre there are different versions. However, all these versions are running within containers that are provided by the same software. So perhaps it is multi-tenant? I’d suggest that it is, but it fails the 100% on one version test.
My points here are 1) it is dangerous to make sweeping generalisations and 2) that whilst there are large benefits to moving to multi-tenant solutions, there is also a real business demand expressed in $$$ to ensure stability of solution, which is a real risk of a “true” multi-tenant solution.
The diagrams of Sven in SaaS and PaaS: a symbiotic relationship delivering enterprise value do well to show the immense value of cloud solutions over traditional onPremise model but don’t hide the downsides either.
I think it’s worth while to show two sides of an argument. When trying to convince someone to buy an apple rather than an orange, point out that the orange is juicier, but perhaps the apple has less risk of spilling juice down your shirt front when biting in to it.
I think it is imperative that if we are to be trusted as advisers to those that claim that they don’t understand #cloud (and probably those that do too) we should probably discuss the downsides too.
Perhaps that’s bad practise in sales, to point out the bad sides of your product? Perhaps why sales people are consistently rated untrustworthy? Me I’d rather not have someone accuse me of being in sales. 😉
Reader’s Digest Poll – Trusted People 2014
Gallop Poll – Honesty/Ethics in Professions