Unable to take snapshot with Ceph image DS + Deploy mode SSH

Community Support Storage
1

Hello,
we have a ceph image_ds, some images downloaded from OpenNebula Public on it
We are deploying the VMs using KVM and TM_MAD_SYSTEM = “ssh”
We can’t take snapshot of the vms running this way. This is the error:
error: unsupported configuration: internal snapshot for disk sda unsupported for storage type raw

I know that ceph uses raw format, but the images are deployed locally on the hosts.
These are some parameters taken from the image page:
Name CentOS 7 - KVM
Datastore cephds
DEV_PREFIX vd
FORMAT qcow2
FROM_APP 30
FROM_APP_NAME CentOS 7 - KVM
TM_MAD_SYSTEM SSH

There is a way to be able to take snapshots?
Thank you
Marco

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2

I think that snap creating is impossible on ceph image ds, cause ceph storages raw formatted images.
I’ve tried to create snaps by rbd, but vms cannot be deployed after it. There are only 2 ways that I’ve heard, it’s backup soft provided by “Sep sesam” and the easiest way, is to create new images from VM, to makes backups.

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