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).