Separate a hestiacp server into two: separate apache + nginx and database

Hello everybody

Used hestiacp to manage a server with nginx apache mariadb

Soon I will migrate servers and I want to take the opportunity to separate apache + nginx on one server and on another leave only hestiacp + mariadb installed (I use hestiacp api to create database and also backups)

So I thought about making TWO backups of the current server. The first only for files.
And in the second database only backup.

Taking advantage, are there any problems with separating the database on another server with another disk? On server A, it processes php, sends mariadb to server B, which processes and returns the query to server A.
Since there will be 2 discs, and not just one, are there any problems with this approach in terms of performance?