share files between virtual machines

[orsidoz]

Hi,

To share a folder between virtual machines I have some questions:

1. How should I share folders between virtual machines?

• Install NFS-server on Proxmox main host?
• Install NFS-server on a LXC container?
• Install NFS-server on a KVM based machine
• Mount a folder with Bind Mount to a LXC container then share the folder with NFS to other virtual machines?

2. how should I config network to have a connection between virtual machines? only a private IP in the same subnet on all virtual machine is enough?

Sorry for my poor english.
Thanks for replies!

 

[slanbuas]

Here's few thing to keep in mind. Hope it's usefull :

- If you are looking to have your nfs server in a container you might need to tweak it's settings. Personally, to keep future maintenance simple I would not. Have a look at this thread for more details why:

https://forum.proxmox.com/threads/is-it-possible-to-run-a-nfs-server-within-a-lxc.24403/

- Have a KVM as a NFS fileserver also have downsides:
- You will have to make sure your fileserver is up and running before all your other VMs (easy)
- You will have some IO overhead (virtio should help)
- You are creating 1 aditionnal potential single point for failure to all your VMs (was also the case for a container).
- To investigate : I never tried, but you might have a performance problem if you also want to use zfs in your VM since you'll be doing zfs in a zfs volume.

 

[fireon]

I have running NFS on PVE host for many years. Without problems. But a permissionbut in kernel 4.13, so use 4.10 on pve.