Everyone,

I am trying to create external snapshots of a kvm guest machine and have not been able to do so.

In accordance with :
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-troubleshooting-workaround_for_creating_external_snapshots_with_libvirt

I have used the command line :

snapshot-create-as –diskspec vda,snapshot=external,file=/u4/guest/MaBa-
clone/test.snap.img–domain MaBa-clone –name MaBa-clone_snap –description “Snap before 9Aug2020”

This command line gives me the error :
error: unsupported configuration: disk ‘vda’ must use snapshot mode ‘internal’

Is it possible to perform an external snapshot of a kvm guest?

Greg Ennis