Yourdan, please look at the API [1]. I'm not sure what your hypervisor supports. This is documented to only work on KVM.
In general I wouldn't concern myself with umount when reverting volume, but 1. shutdown the VM 2. attach the reverted volume and 3. boot up again. Hope you're successful with your design, [1] https://cloudstack.apache.org/api/apidocs-4.15/apis/revertSnapshot.html On Tue, Jun 29, 2021 at 1:05 PM Yordan Kostov <yord...@nsogroup.com> wrote: > Wondering if that is on purpose (technical issue or design flaw due to > which it is better this way)? > > While looking into how volume backup (VB) functions will it be possible to > design a revert this way: > > 1. On the volume snapshot page a button that allows reverting > original disk to this state > 2. When button is pressed > 2.1. New volume is created from the VB on the backup NFS storage > 2.2. VM existing partition is unmounted > 2.3. the newly created volume is attached on its place > 2.4. (not sure about this step) unmounted partition is removed > > Is this design valid? It does not look that complicated, I will ditch in > ACS development files next week and see if it is suitable task for me. > > Best regards, > Jordan > > > > -----Original Message----- > From: Yordan Kostov <yord...@nsogroup.com> > Sent: Tuesday, June 29, 2021 12:29 PM > To: users@cloudstack.apache.org > Subject: Cloudstack backup framework > > > [X] This message came from outside your organization > > > Dear all, > > I have been playing around ACS backup capabilities (4.15 > with XCP-NG) and noticed the following: > > 1. Full VM snapshot is short term solution for immediate revert after > bad patch change > 2. Volume snapshot is long term backup solution of VM data but metadata > is not stored > > Did some tests with Volume snaps as follow: > > * Made some root partition schedule snaps > * Converted one snap to volume > * I could not find a way to create a new instance with that volume. Is > there a direct way (GUI and API)? It is possible to create a template but > that seems like a bit too much unnecessary steps to revert a VM. > > > Is it possible to revert existing VM volume from snapshot directly (from a > user perspective through the GUI. > > > > I read the documentation – ( > https://urldefense.com/v3/__http://docs.cloudstack.apache.org/en/latest/adminguide/storage.html?highlight=Snapshot*snapshot-restore__;Iw!!A6UyJA!w7oYtaRN24lFJreApwzhpLbWG_V1LHlsIfqocukmbOCLIRdtOCGGN_vIuBxUe84U$ > ) which also say that direct volume revert is not possible ☹. > > > Best regards, > Jordan > > <font size="2"><font color="#D8D8D8">11!</font> > > -- Daan
