Cloning a full Server

Hi there,

I'm using Plesk Onyx on Ubuntu 16.04 with around 150 domains hosted
I want to migrate to a new server.
Same hardware, but bigger hard drive.
The two servers are in the datacenter but I only have ssh access to them.
There is a really fast connection between them.

I want to move everything I have on the server A to server B
I'd like to avoid to make a fresh install of plesk on server B then Import site by site.

Isn't a way to make a rsync from server A to Server B, then on server...

Cloning a full Server