When the resource demand exceeds the available resource capacity, attributes such as shares, reservations, and limits can be used to determine the amount of CPU, RAM, and storage resources to be provided to VMs. This method is not always the most efficient solution you can use, especially if you are managing a large environment where the number of VMs could be high.
The management of resources can be performed through the use of the shares, reservation, and limit attributes:
- Shares: Specifies the priority of a VM to get resources during a period of contention. When resources in an ESXi host are limited and the VMs compete to access resources, the VMs configured with higher shares will have higher priority to access more of the host's resources. Shares can be specified as High, Normal, or Low with a ratio of 4:2:1...