Struggling to set up InfluxDB add-in with InfluxDB running on another server in the same network

First of all, I have some tech skills, but I am far from an expert.

I have HA running native on an intel box. I have installed the influxDB and Grafana add-ons. This is all working. I have some concern about consuming the disk storage - 250GB SSD - on the HA server.

I also have an RPi4 with around 7TB of storage in a mixture of HDD and SSD mounted as external drives and shared rw with samba. I use these drives to create secondary backups of the HA configuration, amongst other things.

I would like to install influxDB on the RPi4 and write all the sensor records to the remote drives. Or would it be better to mount one of the RPi4 drives and somehow point influxDB and Grafana at the mounted drive?

My preference would be mount one of the samba drives and point both influxDB and grafana at the mounted drive.

Question 1:
Which is the better approach?

Question 2:
Does anyone have config settings for their preferred approach?