Capacity planning for virtual infrastructure
Before we start looking at the capacity planning features in the vRealize Operations solution, it is worth taking a step back to understand how you want to account for capacity in your environment.
This is fundamental to ensuring that vRealize Operations delivers on your organization's capacity planning operational imperatives. I spend a lot of time with vSphere administrators talking through this, as it can have a profound effect on how capacity is reported in vRealize Operations.
Principles of Demand and Allocation capacity planning models
The key to effective capacity planning, in a virtual infrastructure, is deciding where and when you want to use a Demand-based model, and where you want to use a model based on Allocation.
To understand this better, let's consider a typical virtual machine with the following resources:
- 2x vCPUs
- 4GB RAM
- 40GB disk
How much capacity is this virtual machine consuming?
The answer to this question can vary enormously...
