Minimum System Requirements
RAM
The minimum amount of RAM required for installing and running Plesk.
| Linux | Windows |
|---|---|
| 512 MB + 1 GB swap | 2 GB |
Disk space
The minimum amount of free disk space required for installing and running Plesk.
| Linux | Windows |
|---|---|
| 10 GB | 30 GB |
Recommended requirements
RAM
Our recommendations are based on the following presumptions:
- Only 10% of all websites on shared hosting are active (have any persistent number of visitors per week/month).
- 128 MB of RAM is fine for most typical websites.
- WordPress: 64 MB
- Joomla: 64 MB
- Drupal: 128 MB
- Symfony: 128 MB
- No more than 1-3 simultaneous visitors per website, not more than 500 unique visitors per website per day.
If the above is true, we recommend having 1GB of RAM for every 40-50 websites on a shared hosting node.
If you are hosting websites that generate more traffic (5-10 simultaneous visitors per website, between 1000 and 30000 unique visitors per website), we recommend having between 500 MB and 1 GB of RAM per website.
In addition, having sufficient disk space for memory swapping is highly recommended:
| Amount of RAM on the server | Recommended free disk space for swapping |
|---|---|
| Less than 1 GB | 1 GB |
| 1 GB or more | 1/2 * the amount of RAM |
Disk space
We recommend having this much disk space for hosting:
| Type of hosting | Recommended free disk space for websites |
|---|---|
| Typical shared hosting (100-500 websites per server) | Between 2 and 2.5 GB per website |
| Dedicated VPS hosting (1-10 websites per server) | Between 4 and 12 GB per website |
