OpenStack for Architects - Second Edition

Sizing the hardware to match the workload

As we mentioned at the start of this chapter, while an iterative approach for developing and deploying software is a best practice, an iterative approach for purchasing hardware has the potential to kill your private cloud initiative. It's crucial to get the hardware right at the first time so that you can line up the appropriate discounts from your hardware vendor and set the appropriate budget at the start of the project. Sizing is often difficult for these projects though, as it can be difficult to anticipate the requirements of the workload ahead of time. This is one of the reasons that it's so important to get the application owners involved early in the project—they'll be able to anticipate ...