What are recommended requirements of SWAP, RAM and Disk space for Plesk Obsidian

Plesk Obsidian kb: how-to

Applicable to:

What are recommended hardware requirements (RAM, Disk space) and required minimum size of SWAP for Plesk?

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

Server load	Recommended RAM volume
No more than 1-3 simultaneous visitors per website, no more than 500 unique visitors per website per day	1GB of RAM for every 40-50 websites
5-10 simultaneous visitors per website, between 1000 and 30000 unique visitors per website	Between 500 MB and 1 GB of RAM per website

Note: The maximum amount of RAM supported is subject to the amount supported by the OS

The minimum amount of free disk space required for installing and running Plesk.

Linux	Windows
10 GB	30 GB

It is recommended 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