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Server

Characteristics

Name Unit Default value Description Example
usage None See server usage ..
cpu None See cpu ..
ram None See ram ..
disk None See ssd & hdd SSD or HDD ..
motherboard None See motherboard ..
power_supply None See power_supply ..
assembly None See assembly Assembly phase ..
case None See case Enclosure ..

Server usage

In addition to the characteristics available for usage, you can use the following:

Name Unit Default value (default;min;max) Description Example
other_consumption_ratio None 0.33;0.2;0.6 Power consumption ratio of other components relative to RAM and CPU 0.2
hours_life_time None 35040 Lifespan of the element 3
use_time_ratio /1 1 Proportion of time the instance is used during the given duration. 0.5

Complete

The following components are completed with the characteristics taken from the archetype :

Embedded impacts

Impacts criteria

Criteria Implemented Source
gwp yes Bottom-up approach based on Green Cloud Computing, 2021
adp yes Bottom-up approach based on Green Cloud Computing, 2021
pe yes Bottom-up approach based on Green Cloud Computing, 2021
gwppb yes Base IMPACTS® ADEME
gwppf yes Base IMPACTS® ADEME
gwpplu yes Base IMPACTS® ADEME
ir yes Base IMPACTS® ADEME
lu yes Base IMPACTS® ADEME
odp yes Base IMPACTS® ADEME
pm yes Base IMPACTS® ADEME
pocp yes Base IMPACTS® ADEME
wu yes Base IMPACTS® ADEME
mips yes Base IMPACTS® ADEME
adpe yes Base IMPACTS® ADEME
adpf yes Base IMPACTS® ADEME
ap yes Base IMPACTS® ADEME
ctue yes Base IMPACTS® ADEME
ctuh_c yes Base IMPACTS® ADEME
ctuh_nc yes Base IMPACTS® ADEME
epf yes Base IMPACTS® ADEME
epm yes Base IMPACTS® ADEME
ept yes Base IMPACTS® ADEME

Bottom-up approach

\[ \begin{equation} \begin{aligned} \text{server}_\text{embedded}^\text{criteria} & = \sum_{\set{\text{components}}}{\text{component}_ \text{embedded}^\text{criteria}} \\ \\ & = \text{cpu_units} * \text{CPU}_{embedded}^{criteria} \\ & \quad + \ \text{ram_units} * \text{RAM}_{embedded}^{criteria} \\ & \quad + \ \text{ssd_units} * \text{SSD}_{embedded}^{criteria} \\ & \quad + \ \text{hdd_units} * \text{HDD}_{embedded}^{criteria} \\ & \quad + \ \text{motherboard}_{embedded}^{criteria} \\ & \quad + \ \text{power_supply_units} * \text{power_supply}_{embedded}^{criteria} \\ & \quad + \ \text{assembly}_{embedded}^{criteria} \\ & \quad + \ \text{enclosure}_{embedded}^{criteria} \end{aligned} \end{equation} \]

Fix impact factors

Criteria Unit value
ir kg U235 eq. 2320.0
lu No dimension -147.0
odp kg CFC-11 eq. 0.00135
pm Disease occurrence 0.000113
pocp kg NMVOC eq. 8.4
wu m3 eq. -3710.0
mips kg 10600.0
adpe kg SB eq. 0.0378
adpf MJ 51500.0
ap mol H+ eq. 19.7
ctue CTUe 48400.0
ctuh-c CTUh 1.94e-07
ctuh-nc CTUh 1.87e-05
epf kg P eq. -0.258
epm kg N eq. 2.94
ept mol N eq. 27.0

Usage impact

Both power consumption and consumption profile are implemented.

Consumption profile

A server consumption profile is of the form :

\[ \text{CP}_{\text{component}} = \text{consumption_profile}_{\text{component}} \]
\[ \text{CP}(\text{workload}) = (\text{CP}_{\text{CPU}}(\text{workload}) + \text{CP}_{\text{RAM}}(\text{workload})) * (1 + \text{other_consumption_ratio}) \]

\(\text{CP}_{\text{CPU}}(\text{workload})\) and \(\text{CP}_{\text{RAM}}(\text{workload})\) depend on the technical characteristics of the RAM and CPU. \(\text{other_consumption_ratio}\) is used to account for the electrical consumption of the other components (other than RAM and CPU).