How can I enable snapshots on LXC Container?

[kamzata]

How can I configure the LXC Container guest so it will be able to take snapshots?

 

[tom]

As long as you storage supports it.

See https://pve.proxmox.com/pve-docs/pve-admin-guide.html#chapter_storage

 

[kamzata]

At the moment, my LXC container is running Debian 10 on ext4 file system. The Container is stored on the same disk where is running Proxmox (/var/lib/vz/), and this latter is using ext4 as well. If I convert my LXC ext4 file system to ZFS then will I able to take Snapshot? How can I convert it?

 

[LnxBil]

If I convert my LXC ext4 file system to ZFS then will I able to take Snapshot? How can I convert it?

You need to convert the host storage to ZFS. You can do this by reinstalling. Backup all your VMs/CTs to an external storage, reinstall PVE with ZFS and restore all you VMs/CTs

 

[kamzata]

You need to convert the host storage to ZFS. You can do this by reinstalling. Backup all your VMs/CTs to an external storage, reinstall PVE with ZFS and restore all you VMs/CTs

Got it. Thanks.

 

[kamzata]

What are the downsides to use ZFS with Proxmox?

 

[harvie]

ZFS heavily trades IO performance for caching / RAM consumption. So if you have enough RAM, your IO will be even faster than before. If you don't have enough RAM, the IO will be slow and RAM occupied.

 

[kamzata]

Thanks. Is ZFS stable for production? Are the snapshots safe and “solid”?

 

[tom]

Thanks. Is ZFS stable for production? Are the snapshots safe and “solid”?

Yes.