Configuring Green Score Sustainability
Data for Physical Data Centers
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
for physical data
centers that have been added to a vCenter Server account, a VMware Cloud on Dell EMC
account, or to a
VMware Cloud
Foundation
account and configured
for green score. 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 for Physical Data Centers
- From theHomepage, click .
- From theSustainabilitypage, clickConfigurefrom the Green Score panel. Enter the details in theOrganizationtab.You must configure sustainability data at the Organization level and only then will you be able to configure sustainability for physical data centers. For information about configuring sustainability at the organization level, see Configuring Green Score Sustainability Data at the Organization Level.
- Click theSavebutton in theOrganizationtab to save the Organization level details and to activate thePhysical Data Centerstab.
- From thePhysical Data Centerstab, click theAdd Physical Data Centerbutton to add a physical data center to a vCenter Server account, aVMware Cloud on Dell EMCaccount, or to aVMware Cloud Foundationaccount if you have not previously added a physical data center from the page. For more information about adding physical data centers, see Adding Physical Data Centers in VMware Aria Operations.
- When you create a physical data center, the green score configuration page for that physical data center is displayed and you can fill in all the details.If you have already added a added a physical data center from the page, a list of physical data centers appears on thePhysical Data Centerstab. You can select each of the physical data centers from the vertical ellipses calledAdd Greenscore Configuration.
- Select a physical data center from the Physical Data Centers map/list and then enter the details in thePhysical Data Centerstab.
Option | Description |
|---|---|
Green Score Component Input -
Virtualization Ratio(%) | |
Compute Virtualization | Enter the percentage of compute services that are virtual.
Default values for the physical data center green score
configuration are inherited from Organization level inputs. |
Network Virtualization | Enter the percentage of network services that are virtual.
Default values for the physical data center green score
configuration are inherited from Organization level inputs. |
Storage Virtualization | Enter the percentage of storage technologies that are virtual.
Default values for the physical data center green score
configuration are inherited from Organization level inputs. |
Desktop Virtualization | Enter the percentage of desktops that are virtual. Default
values for the physical data center green score configuration are
inherited from Organization level inputs. |
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 for your physical data
center. Default values for the physical data center green score
configuration are inherited from Organization level inputs. The
value changes dynamically each day. |
Storage (years) | Enter the average age of the servers for your physical data
center. Default values for the physical data center green score
configuration are inherited from Organization level inputs. The
value changes dynamically each day. |
Network (years) | Enter the average age of the servers for your physical data
center. Default values for the physical data center green score
configuration are inherited from Organization level inputs. The
value changes dynamically each day. |
Desktop (years) | Enter the average age of the servers for your physical data
center. Default values for the physical data center green score
configuration are inherited from Organization level inputs. The
value changes dynamically each day. |
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 |
|---|---|
Physical Data Centers (map/list) | Displays the configured physical data centers in a map view or in
a list. Select the physical data center for which you want to see
green score details in a map view or from a list using the options
at the top right corner. To reset to the Organizational level,
click the X button for the selected
physical data center. |
Physical Data Centers by Greenscore | Displays the number of all physical data centers. At the bottom
of the panel, you can view the number physical data centers that are
configured (green in color) and not configured (gray in color) for
green score. For configured physical data centers, you can view the
range of green score values applicable to the configured physical
data center. |
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
corresponding physical data center's configuration. The formula is a
weighted average of virtualization percentages with 40%, 30%, 20%,
and 10% corresponding weights. |
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 corresponding physical data center's
page. |
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. However, you
can change and input ages that are specific to the physical data
center. 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. |
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.