Understand the hierarchical structure of resource pools in VMware vSphere 6 and how child pools compete for resrouces.
- [Voiceover] In this video, I'll explain…child resource pools, and how they can be used…to create a resource pool hierarchy.…Resource pools are a great way to control resource usage…on a wide scale.…Resource pools are container object…that can include virtual machines…as well as other resource pools.…In the first and foremost resource pool…is the Root Resource Pool.…This isn't a resource pool…that you'll manually create or even see.…The Root Resource Pool is comprised…of the actual, physical resources that are available.…
It can be the resources of a single, ESXi Host…or a cluster of ESXi hosts.…As we create resource pools,…they will contain child objects.…Virtual machines and child resource pools…can both be child objects,…and these child objects will compete for the resources…of the parent pool.…We can configure shares, limits, and reservations…on the child objects, and those resource settings…will control priority of the virtual machines…within that resource pool.…
Let's take a look at an example of a resource pool…
VMware Certified Instructor Rick Crisci provides an overview of vSphere resource controls—shares, limits, and reservations—and their impact on performance and VSWP file size. Rick explains exactly what happens when virtual machines compete for resources, the role of swap files, and how resource controls help automate allocation.
In chapter 2, Rick shows how to manage performance with resource pools, including child pools. He explains the impact a reservation has on resource pools, and includes a demo on creating and configuring a resource pool. Chapter 3 is an overview of the vFlash architecture for leveraging SSD resources. Watch this chapter to learn how to configure vFlash reservations and to assign a reservation to a VM.
Note: This course maps to the Administer and Manage vSphere 6.x Resources domain of the vSphere Certified Professional 6—Data Center Virtualization (VCP6DCV) exam.
- Allocating memory and CPU
- Using ESXTOP
- Configuring reservations, limits, and shares
- Managing performance with resource pools
- Creating child and tiered resource pools
- Leveraging SSD resources with vFlash