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# Utilization screen details

The appliance gathers utilization data for certain resources on metrics such as CPU usage, power consumption, and temperature. This data is displayed in the Utilization panel on the Overview for the resource, and in utilization graphs in the Utilization view for the resource. The metrics that the appliance gathers data for are detailed below.

- Capacity utilization metrics

- CPU utilization metrics

- Power utilization metrics

- Temperature utilization metrics

- Custom utilization metrics

## Capacity utilization metrics

Capacity amount is calculated in tebibyte (TiB) of space on storage systems. The average value displayed for each metric is rounded off to the nearest whole number.

Metric | Description
--- | ---
Total capacity | The total disk space available on the storage systems
| NOTE: If there are failed components the total capacity of the storage system might not add up to the sum of allocated and free capacities of the storage system.
Allocated capacity | Total disk space allocated to storage systems
Free capacity | Total disk space that is still available for allocation

## CPU utilization metrics

Server hardware CPU utilization statistics are gathered from historical data stored on iLO, every 5 minutes. Statistics for all CPUs are displayed in one graph.

Metric | Description
--- | ---
CPU utilization | CPU utilization is expressed as a percentage. A high percentage indicates that processes running on the device are consuming a considerable amount of CPU resources. If the percentage appears frozen at or near 100%, a process might not be responding.
CPU speed | The average CPU frequency, in GHz

## Power utilization metrics

Power capacity is the calibrated maximum power that a device can consume. Use this data to determine how much power your facility is consuming and the resources that are consuming it. The appliance reports Alerts for devices that exceed their power capacity.

Metric | Description
--- | ---
Average power | The average amount of power the resource is consuming
Peak power | The peak amount of power consumed by the resource
Power cap (For blades only) | Most server hardware and enclosures support control of power consumption through a Dynamic Power Cap. When reporting power utilization, the appliance includes both average and peak power consumption as well as Dynamic Power Cap settings in its graphs. The appliance controls power caps through iLO or enclosure OA.
Resource | Description
--- | ---
Enclosures | The power consumption or cooling limitation on the enclosure. When you set the Dynamic Power Cap on an enclosure, it keeps the power used by the enclosure under the cap by managing the power consumption of server hardware. To set power limits on an enclosure, select the Power thermal→Power management menu item on the enclosure OA. The Dynamic Power Cap limits the enclosure power consumption based on a cooling limit that might be lower than the Derated circuit capacity. The Average power cannot exceed the Power cap or the Derated circuit capacity. The Peak power cannot exceed the Rated circuit capacity.
Server Hardware | The limitation on power consumption enforced by the management processor, in watts.

## Temperature utilization metrics

Temperature utilization graphs display the ambient/inlet air temperature of your data center. The air temperature is detected by sensors embedded on the front of enclosures and other hardware devices.

The operating threshold is 10°C to 35°C (50°F to 95°F). When the device reaches a threshold, it generates temperature alerts. The appliance displays these alerts in the notification banner and in the Activity sidebar.

| NOTE: The temperature is displayed in degrees Celsius or Fahrenheit, depending upon the locale setting of your browser. To change between US and metric units, see Set the browser for US or metric units of measurement.

## Custom utilization metrics

You can create custom utilization graphs by selecting two metrics for a particular resource. The two metrics you select are displayed on a single graph. The custom metrics that are available depend on the resource you are viewing.

See Create a custom utilization graph to learn more.

Resource | Metrics
--- | ---
Enclosures |
Average power | The average power consumption of the enclosure over the time interval, in watts
Peak power | The peak power consumption of the enclosure over the time interval, in watts
Power cap | The power cap for the enclosure, in watts; displayed as a gray band across the graph
Derated capacity | The limit of the average power consumption, in watts, of the enclosure. Displayed as a gray band on the graph
Rated capacity | The limit of the peak power consumption, in watts, of the enclosure. Displayed as a gray band on the graph
Temperature | The temperature of the enclosure over the time interval in Celsius or Fahrenheit (depending on your browser locale settings)
Server Hardware |
CPU utilization | The percentage of CPU utilization by the device over the time interval
CPU speed | The speed of the device CPU over the time interval, in GHz
Average power | The average power consumption of the device over the time interval, in watts
Peak power | The peak power consumption of the device over the time period, in watts
Power cap | The user-defined power cap, displayed as a gray band that covers the values the cap restricts
Temperature | The temperature of the device over the time interval, in degrees Celsius or Fahrenheit (depending on your browser locale settings)

See also

- Utilization (top of chapter)

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