[iamtew]

This seems more about capacity planning your application when running in the cloud.

I was hoping for some insight when you're hosting your own private cloud, that seems quite a bit more tricky. It's easy to prepare to scale up/down your deployment when all the hardware is already there, but when you're the one running the actual cloud and need to do the same, you can't just do an API call and suddenly have another 100 U of servers and switches racked, cabled and provisioned.

Still a nice article though!

[qaq]

Well if you want to service huge spikes you can run a hybrid env. with on prem. handling base load and cloud absorbing spikes or you have to bite the bullet and overprovision on prem/private cloud based on you specific business req.

[samstave]

So Nutanix and hypergrid are trying to address this, though I’m not sure how well they succeed, but the payment model of hypergrid is enticing: they deploy a cluster for you, and you only pay for what you use, so if you want to have flex scaling you can do that... I’d really look at their offering if you’re looking for a solution for on prem elasticity with a lower cost to enter...

I am not associated with either of these companies in anyway other than looking for a solution to the same problem you mentioned.