The View DRS Summary page provides insight and perspective into the actions DRS is taking to balance a cluster. You can view DRS settings for the cluster and cluster balance metrics, and determine if recent vMotions are DRS- or user-initiated.
Where You Find the View DRS Summary Page
From the Quick Start page, select Workload Optimization under Optimize Performance in the left pane. Then select a cluster name in the Current Workloads pane. The dimmed View DRS Summary and Set DRS Automation links turn live. Click the link to display the DRS summary information.
| Pane/fields | Value | ||
|---|---|---|---|
| <cluster name> | Name of the selected cluster | ||
| Automation Level | Enabled/Disabled. DRS is running or not. | ||
| Migration Threshold | Aggressive/Default/Moderate | ||
| Active Memory Used | False/ nn% | ||
| Cluster Balance | Shows the variations in the DRS cluster balance metric over time as DRS runs. The graph shows how DRS reacts to and clears any cluster imbalance each time it runs. | ||
| Cluster Imbalance | The range of potential imbalance values, as expressed in vCenter DRS metrics. | ||
| Total Imbalance | The level of imbalance in a cluster, as measured by vCenter DRS metrics. | ||
| Tolerable Threshold | The upper limit of what is tolerable in cluster imbalance. Designated by a green dotted line, this is a vCenter DRS metric. | ||
| VM Happiness | A bar graph summarizing the total happy and unhappy VMs in the cluster. For individual VMs, there is a presentation of performance metrics related to its happiness, such as %CPU ready time and memory swapped. | ||
| Happy VMs | Total of happy VMs are shown in green. Click in the green zone to show a list of these VMs in the Happy/Unhappy VMs pane to the right. | ||
| Unhappy VMs | Total of unhappy VMs is shown in red. To show a list of these VMs in the Happy/Unhappy VMs pane to the right, click in the red zone . | ||
| Happy/Unhappy VMs | Lists by name all the VMs in the zone you clicked in the VM Happiness pane. | ||
| VM Metrics | Shows the trend in VM happiness or unhappiness | ||
| Recent vMotions | The number of recent vMotions, plotted against time. | ||
| vMotion Details | Shows the number of DRS-initiated and user (non-DRS) initiated vMotions over time. You can choose which type you want to view. | ||
| Date/VM | Date of a given vMotion. | ||
| Source/Destination | Source and destination of moved VMs. | ||
| Type | DRS-initiated or user initiated. | ||
