How to add RAID volume?

[MoreDark]

Hello!
I'm a beginner in virtualisation, so bear with me.

I have a Microserver Gen8 + HP P222 RAID board with 2 x 500 Gb HDD and a 240Gb SSD on AHCI.
On the SSD I've installed Proxmox 6.2-4 and my VMs.

In Proxmox I've installed Windows Server 2019, Pi-Hole and I also want to install Xpenology.

My dilemma is simple: hot to make the RAID volume accessible to all the VM's?
Where do I start?

 

[aaron]

Do I understand you correctly? You want to store some data locally on the PVE server and want to give the guests access to it?

 

[MoreDark]

I want to be able to store some data on the RAID volume, accessible for my VM's
I have a dilemma about the file system and If I need to create multiple partitions or I need to create containers?

 

[aaron]

While it is possible to mount a directory on the host directly into containers, the same is not possible for VMs. You could either have a VM serving NFS or CIFS, or set that up directly on the PVE host. The latter is not officially supported, so you will need to install the necessary packages and set up the config yourself.