Sure, here’s a technical description of how you can configure Resource Reservation in vSphere to ensure minimum performance for certain VMs:
1. Identify the VMs that require minimum performance.
2. Determine the resource requirements of each VM, such as CPU and memory.
3. Access the vSphere Web Client or vSphere Client.
4. Click on the VM you want to configure and go to the “Edit Settings” window.
5. Under the “Virtual Hardware” tab, click on “CPU” and select the number of CPUs required for the VM.
6. Also under “Virtual Hardware,” select “Memory” and assign the required amount of memory to the VM.
7. Expand the “Resources” tab and confirm the “Shares” setting is set to “Normal.“
8. Next, set a “Reservation” for CPU and/or memory, depending on the resource requirements of the VM.
9. In the “Reservation” field, enter the minimum amount of CPU and/or memory that are required for the VM.
10. Click “OK” to save the changes.
By setting resource reservations for a VM, you ensure that the minimum performance requirements are always met, even in times of contention with other VMs on the same host. The VM will always have access to the minimum amount of resources it requires, and other VMs that do not have reservations will be impacted first when resources become strained.
