Configuring Green Score Sustainability
Data at the Organization Level
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. Ensure that the following
permissions are assigned:
- Home > Change Organization Settings
- Home > View Sustainability Page
Configuring Green Score for the
First Time
From the
Home
page, click . From the Sustainability
page, click
Configure
from the Green Score panel. Enter the details
in the Organization
tab.
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
Green Score is calculated based on five
components, which are: Workload Efficiency, Utilization of Physical resources, the
extent of Virtualization, Power Source, and Hardware Efficiency. Each of these
components has varying levels of impact on the carbon emissions within a data center
and hence has a different weightage when contributing to a common Green Score.
- 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. 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.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) Shares are user
inputs in the Organization Details
page.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. 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.