In the Cluster Dashboard, Showing CPU details in GHz, but I need to check how many CPU cores are using in my cluster. How to size and calculate per core = how many vCPU and overall vCPU limit for the cluster.
Solved
Sizing and Configure CPU
+1Best answer by Moustafa Hindawi
Hello
Asking about how many pCPU used is depend on vCPU to pCPU ratio for each VM, you simple use Nutanix Collector, in output file, in vCPU tap you can see all VMs’ vCPU, select the column and know total vCPU usage.
Second option is to use Prims PRO - Planning feature, add the new scenario and add existing workload or new workload configuration to know how your cluster resources will be enough or not, and if not, how many additional resources do you need.
Don’t forget to use Playbooks feature to reduce Overprovisioned VMs to claim unused CPU resources.
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+6Hello
Asking about how many pCPU used is depend on vCPU to pCPU ratio for each VM, you simple use Nutanix Collector, in output file, in vCPU tap you can see all VMs’ vCPU, select the column and know total vCPU usage.
Second option is to use Prims PRO - Planning feature, add the new scenario and add existing workload or new workload configuration to know how your cluster resources will be enough or not, and if not, how many additional resources do you need.
Don’t forget to use Playbooks feature to reduce Overprovisioned VMs to claim unused CPU resources.
+1Thank You,
I am not asking provisioned but I am asking, totally, how many vCPU’s are available overall from the cluster.
+6Hello
The only way is to make scenario on Planning feature, add the new scenario and add new workload configuration with number of vCPUs which you would need to know how your cluster resources will be enough or not, and if not, how many additional resources do you need.
+1There is no hard limit on vCPUs in a cluster – the limit is physical CPU cycles. Nutanix will manage prioritizing those cycles, but of course once you get to a certain utilization level, performance will be impacted because CPU queues will get long. As Moustafa says, your best bet is to add a scenario and see what it does to the predicted utilization.
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