What do I need to change to enable making snaphots?

[janvv]

When I try to make a snapshot of an LXC it says: The current guest configuration does not support taking new snapshots.
Why is that?






hmm.... just had a quick look at my other containers and VMs. All of them have the same issue, except one. As far as I can see the difference is the disk format: qcow2 vs raw.
Is that the reason?

 

[janvv]

Yes, answered my own question. And LXC disks cannot be easily converted to qcow2 without making the containers unbootable.
Never mind, I will make scripts to easily recreate them when needed.

 

[rbollink]

This could depend on the type of storage your VM's disk is hosted on.
For example, a network mount in iSCSI does not allow snapshots to be taken.

ZFS, CEPH or NFS allow you to take snapshots.

 

[LnxBil]

ZFS, CEPH or NFS allow you to take snapshots.

NFS only with QCOW2 (also local with QCOW2)

 

[Philipp Hufnagl]

Yes, answered my own question. And LXC disks cannot be easily converted to qcow2 without making the containers unbootable.
Never mind, I will make scripts to easily recreate them when needed.

if you can make snapshots of LXC depends on the storage(s) you are using. For an overview check out this table

 

[LnxBil]

if you can make snapshots of LXC depends on the storage(s) you are using. For an overview check out this table

You may want to use a link that works outside of your host:

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

 

[Philipp Hufnagl]

You may want to use a link that works outside of your host:

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

Ups! Thank you!

 

[Dunuin]

And also keep in mind that every filesystem of that LXC needs snapshot capability or none of them will be snapshotable. Be aware of that when working with bind-mounts and so on.

 

[janvv]

You may want to use a link that works outside of your host:

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

Thanks a lot for the link to this overview!! Very clear.
Considering to re-setup my server after the summer holidays and use ZFS.