Question How can I tell what type of RAM I need for the six websites on my server?

[Colonel36]

Server operating system version

Ubuntu 20.04

Plesk version and microupdate number

Plesk Obsidian18.0.57

Hi.
I think the VPS server I have is maybe too much, I want to know wheter I could downgrade the RAM, but I don't want the server to fail.
Is there a way to check how much I need and wheter or not I can downgrade?
Many thanks

 

[Bitpalast]

When your websites are in full swing, what is the output of
# free
on your console?

 

[Colonel36]

Do you mean this?

 

[Bitpalast]

No, I meant the free command on the Linux console when your server is under heavy load.

Anyway, according to the Graphana charts, you can reduce your RAM to 3/4 of your current setup. Example: If your system has 4 GB RAM, you could reduce to 3 GB, but not less. If you reduce it by more than 25% it is very likely that your system will become considerably slower, because at times it will need to swap RAM. If it was my own system, I'd not reduce RAM at all.

 

[Colonel36]

Many thanks