In my 1-Click Capacity Planning vCOps Dashboard blog series I’ve created 6 vCOps Super-Metrics. Two of them calculating ESXi host cluster CPU and memory total provisioned capacity. But let us not forget HA Admission Control behind.
Looking at HA Admission Control policy numbers in a capacity planning process is more than a valid point. In the world of vCOps, configuring the policy to take HA under consideration is super important and will have effect on vCOps capacity planning module results. I had a blog post a few months ago around vCOps usable capacity.
So, what about creating some Super-Metric which will respect Admission Control reservations?! In order to do so, I will be using vCOps 5.8 and will assume that Admission Control policy set to reserve 10% for CPU and 25% for memory.
|Total CPU Usable Capacity in GHz (With HA Admission Control at 10%)|
|cpu|capacity_provisioned = Resources > Cluster Compute Resource > CPU Usage > Provisioned
|Total Memory Usable Capacity in GB (With HA Admission Control at 25%)
|mem|host_provisioned = Resources > Cluster Compute Resource > Memory > Provisioned
Now that we have our cluster usable capacity Super-Metrics set we can use it in our capacity planning dashboards.
But wait, what about showing the actual reserve % of CPU and Memory within a Scoreboard widget? Lets create couple more Super-Metrics:
|HA Admission Control Total CPU Reserved = 10%)
|cpu|capacity_provisioned = Resources > Cluster Compute Resource > CPU > Provisioned
|HA Admission Control Total Memory Reserved = 25%)
|mem|host_provisioned =Resources > Cluster Compute Resource > Memory > Provisioned
Now that we have “Admission Control Super-Metrics” set, we can use it in our dashboards. My favorite for this one is the Scoreboard widget; you can use either the interactive way using XML’s or just create a static widget like this by selecting a specific cluster.