Virtualization plays a crucial role in data center consolidation and thereby helps in the reduction of hardware footprint in the data centers. Virtualization helps in the saving of power consumption and floor space in data centers which improves the overall efficiency and curbs carbon emissions that result from IT infrastructure growth. Use this page to configure green score data in VMware Aria Operations. Using green score, organizations can track where they are in their sustainability journey and how they are progressing over time.
- Home > Change Organization Settings
- Home > View Sustainability Page
Configuring Green Score for the First Time
| Option | Description |
|---|---|
| Green Score Component Input - Virtualization Ratio(%) | |
| Compute Virtualization | Enter the percentage of compute services that are virtual. Default value is 80%. The default values are based on the VMware estimate of the most common numbers. |
| Network Virtualization | Enter the percentage of network services that are virtual. Default value is 30%. The default values are based on the VMware estimate of the most common numbers. |
| Storage Virtualization | Enter the percentage of storage technologies that are virtual. Default value is 40%. The default values are based on the VMware estimate of the most common numbers. |
| Desktop Virtualization | Enter the percentage of desktops that are virtual. Default value is 20%. The default values are based on the VMware estimate of the most common numbers. |
| Power Sources (%) | |
| Add Power Source | Click this option to add the share of power sources that you use. The total should add up to 100%. The power sources are coal, oil, natural gas, hydroelectric, solar PV, wind, biomass, and nuclear. The default value for coal is 79.2% and the default value for hydroelectric is 20.8%. The default values are based on the global averages from the Greenhouse Gas (GHG) Emissions Intensity of Electricity Generation methods. The actual global average value is 709g/kWh. |
| Average Age of Hardware in years (as of today) | |
| Servers (years) | Enter the average age of the servers in your organization. Default age is two years. The value changes dynamically each day. The default values are based on the VMware estimate of the most common numbers. |
| Storage (years) | Enter the average age of storage in your organization. Default age is two years. The value changes dynamically each day. The default values are based on the VMware estimate of the most common numbers. |
| Network (years) | Enter the average age of network in your organization. Default age is three years. The value changes dynamically each day. The default values are based on the VMware estimate of the most common numbers. |
| Desktop (years) | Enter the average age of the desktops in your organization. Default age is five years. The value changes dynamically each day. The default values are based on the VMware estimate of the most common numbers. |
After you click Save, the Sustainability data is calculated. Calculation of the sustainability data may take some time.
Green Score Details
- Workload Efficiency: Contributes to 22.5% weightage Efficiency = Wastage / (Wastage + Non Wastage).
- Resource Utilization: Contributes to 12.5% weightage based on the utilization of hardware from the absolute capacity without considering buffers and HA.
- Virtualization: Contributes to 15% weightage.
- Power Source: Contributes to 37.5% weightage. Scoring is based on the carbon intensity of the power source used.
- Hardware Efficiency: Contributes to 12.5% weightage, based on the fact that newer generation hardware will be more energy efficient.
| Name | Description |
|---|---|
| Greenscore Meter | Indicates how sustainable a company is. A higher score indicates a greater green score. Green score is calculated based on the different values calculated for workload efficiency, resource utilization, virtualization, power source, and hardware efficiency. |
| Greenscore Trend | Indicates the green score trend of the company. You can view daily, weekly, and monthly trends. |
| Clean Demand | |
| Workload Efficiency | Measures the wastage in the data center and calculates a score based on various waste sources. The workload efficiency value is calculated based on different metrics, such as powered off VMs, oversized VMs, idle VMs, snapshots, and orphaned disks. The metrics are as follows: Total Consumption CPU = (vCenter) CPU|vCPUs Allocated on all Powered On Consumers Total Consumption Memory (GB) = (vCenter) Memory|Host Usage (KB) Total Consumption Disk (TB) = (vCenter) Disk Space|Total Provisioned Disk Space (GB) Oversized VM|vCPU = (VM) Summary|Oversized|Virtual CPUs and Oversized VM|Memory (GB) = (VM) Summary|Oversized|Memory (KB) - These metrics are used to calculate workload efficiency only for powered on VMs. This means that vCPUs and memory of powered off and oversized VMs are excluded from the calculation. Idle VM|Disk (TB) = (Cluster) Reclaimable|Idle VMs|Disk Space (GB) Idle VM|vCPU = (Cluster) Reclaimable|Idle VMs|CPU (vCPUs) Idle VM|Memory (GB) = (Cluster) Reclaimable|Idle VMs|Memory (KB) Powered Off VM|Disk (TB) = (Cluster) Reclaimable|Powered Off VMs|Disk Space (GB) Snapshot|Disk (TB) = (Cluster) Reclaimable|VM Snapshots|Disk Space (GB) Orphaned VMDK|Disk (TB) = (Datastore) Reclaimable|Orphaned Disks|Disk Space (GB) |
| Lean Operations | |
| Resource Utilization | Provides a value based on server and storage utilization. The score is based on the utilization of hardware from absolute capacity without considering buffers and HA. Here are the metrics used: Total ESXi Hosts CPU Utilization (GHz) = (vCenter) CPU|Usage (MHz) Total ESXi Hosts CPU Capacity (GHz) = (vCenter) CPU|Total Capacity (MHz) Total ESXi Hosts Memory Utilization (TB) = (vCenter) Memory|Host Usage (KB) Total ESXi Hosts Memory Capacity (TB) = (vCenter) Memory|Total Capacity (KB) Organization/Physical Total datastores capacity = (vCenter) Disk Space|Total Capacity (GB) Total datastores utilization = (vCenter) Disk Space|Utilization (GB) Total RDM = Sum((VM) Virtual Disk \ Configured Size) |
| Virtualization | Virtualization score is calculated based on the virtualization percentage of compute, storage, network, and desktop entered in the Organization Details page. The formula is a weighted average of virtualization percentages with 40%, 30%, 20%, and 10% corresponding weights.
Note: At the organization level, green score is calculated based on physical data centers that are configured for green score. In addition, green score calculation at the organization level also includes
vCenter Server instances that are not associated with any physical data center.
|
| Green Supply | |
| Power Source | The score is based on the carbon intensity of the power source used. For example, traditional coal based power sources will have a carbon intensity rate of 888 g/kWh while wind based power source will have a carbon intensity of 26 only (Reference : WNA Report - Comparison of Lifecycle Greenhouse Gas Emissions of Various Electricity Generation Sources. Note: A 100% badge score indicates zero carbon emission. Each value is calculated based on the share of the power sources entered in the Organization Details page, after which the average value is calculated. The value for each of the power resources is calculated as follows:Green Factor Shares (100%) Adjusted Score (Green Factor * Shares) Coal = 17% (Green Factor) Oil = 31% (Green Factor) Natural Gas = 53% (Green Factor) Solar PV = 92% (Green Factor) Biomass = 96% (Green Factor) Nuclear = 97% (Green Factor) Hydroelectric = 98% (Green Factor) Wind = 98% (Green Factor)
Note: Shares are user inputs in the
Organization Details page.
Note: At the organization level, green score is calculated based on physical data centers that are configured for green score. In addition, green score calculation at the organization level also includes
vCenter Server instances that are not associated with any physical data center.
|
| Hardware Efficiency | The hardware efficiency badge is based on the fact that new generation hardware is more energy efficient than the old generation hardware - by running more workloads on the same sized hardware and also the ability of hardware to optimize energy consumption. The efficiency of hardware which includes server, storage, network, and desktop is based on the average age of the hardware entered in the Organization Details page. For example, if you had entered the age of your servers as 2 years, then the hardware efficiency for servers would be 80%, because the useful life duration is considered as 10 years.
Note: At the organization level, green score is calculated based on physical data centers that are configured for green score. In addition, green score calculation at the organization level also includes
vCenter Server instances that are not associated with any physical data center.
|
Power Consumption Chart
The power consumption chart displays the cumulative power consumption for the last one month. It is calculated using the power usage metrics and is the sum of the last month's daily power consumption. When you click the Power Consumption option, you can also view the Power Consumption trend which can be daily, weekly, or monthly.
Carbon Footprint Chart
The carbon footprint chart displays the carbon emission for the last one month. When you click the Carbon Footprint option, you can also view the Carbon Footprint trend which can be daily, weekly, or monthly.
Environmental Impact
The environmental impact is depicted in terms of carbon emissions from the number of smart phones charged, as per the calculations based on Greenhouse Gas Equivalencies Calculator. For detailed info on this please refer to https://www.epa.gov/energy/greenhouse-gases-equivalencies-calculator-calculations-and-references#smartphones.
For information about Sustainability dashboards, see Sustainability Dashboards.
