SSD
SSD are Disk objects of type SSD.
Characteristics
| Name | Unit | Default value | Description | Example |
|---|---|---|---|---|
| units | None | 1 | SSD quantity | 2 |
| usage | None | See Usage | See usage | .. |
| type | None | SSD | "SSD" | SSD |
| capacity | Go | 1000;100;5000 | Capacity of a ssd disk | 500 |
| density | GB/cm2 | (avg;min;max) in our dataset | GB per cm2 on a ssd wafer | 48.5 |
| manufacturer | None | None | Name of the CPU manufacturer | Samsung |
| model | None | None | .. | .. |
| layers | None | None | Number of layers | 64 |
Embedded impacts
Impacts criteria
| Criteria | Implemented | Source |
|---|---|---|
| gwp | yes | Green Cloud Computing, 2021 |
| adp | yes | Green Cloud Computing, 2021 |
| pe | yes | Green Cloud Computing, 2021 |
| gwppb | no | |
| gwppf | no | |
| gwpplu | no | |
| ir | no | |
| lu | no | |
| odp | no | |
| pm | no | |
| pocp | no | |
| wu | no | |
| mips | no | |
| adpe | no | |
| adpf | no | |
| ap | no | |
| ctue | no | |
| ctuh_c | no | |
| ctuh_nc | no | |
| epf | no | |
| epm | no | |
| ept | no |
Impact factors
The following variables can be completed
density
if manufacturer is given, density can be retrieved from a fuzzy matching on our ssd repository.
If several ssd matches the given manufacturer the average value is given and min and max value are used as min and max fields.
Manufacture impact
For one SSD the embedded impact is:
with:
| Constant | Units | Value |
|---|---|---|
| \(\text{SSD}_\text{embedded_die}^\text{gwp}\) | kgCO2eq/cm2 | 2.20 |
| \(\text{SSD}_\text{embedded_die}^\text{adp}\) | kgSbeq/cm2 | 6.30E-05 |
| \(\text{SSD}_\text{embedded_die}^\text{pe}\) | MJ/cm2 | 27.30 |
| \(\text{SSD}_\text{embedded_base}^\text{gwp}\) | kgCO2eq | 6.34 |
| \(\text{SSD}_\text{embedded_base}^\text{adp}\) | kgSbeq | 5.63E-04 |
| \(\text{SSD}_\text{embedded_base}^\text{pe}\) | MJ | 73.98 |
Info
If there are more than 1 SDD we multiply \(\text{SSD}_\text{embedded}^\text{criteria}\) by the number of SSD given in units.
Usage impact
Only power consumption is implemented.
When part of a server or a cloud instance, each drive is assumed to draw a constant 8 W (min 2 W, max 20 W), independently of the workload. Enterprise NVMe drives idle at about 3.5 to 5 W and average about 8 to 14 W when active, depending on I/O, which the API does not model.
Sources: Samsung PM9A3 datasheet, Kanichai, Doekemeijer et al. (IISWC 2026), LBNL, 2024 United States Data Center Energy Usage Report (about 11 W per NVMe drive), cloud-carbon-exporter (3 W per SSD).