The Stressed Hosts report helps you to detect resource demanding virtual machines that fail to operate because the hosts where these VMs reside are not capable to sustain the workload.
The report analyzes historical performance, configured resource allocation and current workloads to provide recommendations for an optimized allocation of resources.
The report can be used in addition to the Virtual Machines. Right-sizing — VMs Oversized for Memory and CPU and Virtual Machines. Right-sizing — VMs Undersized for Memory and CPU reports to detect VMs not discovered by the right-sizing reports but still experiencing lack of available resources.
This section provides step-by-step instructions that will help you understand how to create the Stressed Hosts report. Consider the following example:
You need to report on Hyper-V hosts in your infrastructure that have performance issues and display top 5 resource demanding VMs running on the hosts, assuming that the maximum CPU dispatch wait time has to be lower than 15%. Use performance statistics for the previous quarter as a ground for the report analysis; omit statistics collected on Saturdays and Sundays.
To create the report, follow these steps:
- Open the Stressed Hosts report.
- Define time intervals.
- Choose how to display report charts.
- Specify a threshold value.
- Choose a report scope.
- Define a resource to be analyzed.
- Choose a number of VMs to display.
- Choose how to assess VM performance.
- Run the report.
- View the report output.