LXC snapshots on NAS storage

[esvee]

Hi there,
I’ve searched quite a lot and looked at the official proxmox storage guidelines. I’m shopping for a NAS, or may build one myself depending on answer.

Can someone definitively answer - I don’t care about sharing or HA. I have a single node.

- does zfs over iscsi allow lxc snapshotting, natively in pve?

- does lvm thin over iscsi allow lxc snapshotting, natively in pve?

I know snapshot is possible on NAS but Id prefer manage this in PVE.

I see officially for smb and nfs qcow2 must be used, which is a vm consideration - rules out LXC. But no guidance exists for zfs over iscsi, or lvm thin.

Thanks very much.

 

[LnxBil]

does zfs over iscsi allow lxc snapshotting, natively in pve?

Does your NAS has ZFS builtin? If not, any ZFS-over-iSCSI will not work despite what virtualization technology works. AFAIK ZFS-over-iSCSI only works with QEMU and not with containers. For that we would need something like ZFS-over-NFS, which does not exist (yet).

does lvm thin over iscsi allow lxc snapshotting, natively in pve?

if LVM-thin does support snapshotting, it does not matter if it's a local storage or if it resides on a network provided block device (FC or iSCSI). However, you will need to configure it yourself in Linux. AFAIK, there is no UI for this (yet).

 

[esvee]

Does your NAS has ZFS builtin?

Thanks for your reply. Yes I would build a NAS with ZFS builtin (truenas) - but I'd only bother if ZFS-over-iSCSI was to support snapshots for LXC. So it sound like this one is a no. Just wondering you have tested?

if LVM-thin does support snapshotting

LVM-thin does provide snapshots though right? https://pve.proxmox.com/wiki/Storage:_LVM_Thin