@AlexanderK

Clonezilla is my go to for doing that. I have a tutorial where I should how to migrate from Virtualbox to XCP-NG here:
https://youtu.be/wSTk9BLwF5k

@olivierlambert

I work with enterprise companies and they NEED those reminders to let them know they should be using the supported version. I don't really see them as annoying at all.

@bullerwins

It's a wonderful feature, you can have customized filters for VM, storage, Templates, and Pools. Combine that with using lots of tags and it makes larger deployments very manageable.

@CodeMercenary

Under the xo-vm-backups directory is a series of directories named with UUID's that contain everything that belongs to a particular VM's backup. As long as you keep each directory and all the contents nested within it you will be able to restore that VM.

@jasonnix

That is enough to get it working and fine for most homelab environments.

@MichaelCropper
I recently did a video tutorial on how XCP-NG virtual machine dynamic memory management and over allocation works.

https://youtu.be/Lsi2-hAoKSE

@abudef
XO will utilize the existing VM disk or snapshot as a base, restoring only the differential data to a new disk saving time. More details are in this blog post
https://xen-orchestra.com/blog/xen-orchestra-5-89/

@abudef
Yes, as far as I know the only way to restore a VM but keep all the GUIDs the same is to roll back a snapshot.

@starmood For each VM backup run inside of Xen Orchestra it backs up not just the VHD but everything that is needed to restore that VM to any other XCP-ng host. So in a complete loss situation you can load a new XCP-ng Host, setup Xen Orchestra, point the new Xen Orchestra to those backups and restore any of the VM's with all their settings.

The metadata backup of XCP-ng is just that, the metadata of the system and it's not granular. It's good to have because all the things like network setting and what VM's are on the hosts will be there, but the VM backups to me are the most important.

I have a tutorial covering how the backups work, it's from a bit over a year ago and there are EVEN MORE features now and I will be doing a new video this year to cover that.

https://youtu.be/weVoKm8kDb4?si=1z6IDqwnK1cxEGjm

I also have a tutorial on how you can also automate the backup validation process
https://youtu.be/A0HTRF3dhQE?si=gZLXQUqLJmDkIQs6

@Matteo

If the storage type you have the VM is thick provisioned it will take up more space. Use a thin provisioned storage for better storage efficiency
https://xcp-ng.org/docs/storage.html#storage-types

If you choose 2 storage destinations it will copy to each of them at the same time.

@coolsport00

I have been using XO & XCP-ng for years now for many of our commercial clients and it's a very solid platform.
While there is a lot of good documentation for XO & XCP-ng first starting out with a new virtualization platform can be a steep learning curve which is why I have a series of videos that are designed to help people get started on the platform. Hope you find them helpful.

Your Complete Open Source Virtualization Guide For Getting Started With XCP-ng & Xen Orchestra
https://youtu.be/2wMmSm_ZeZ4?si=6RsiFiENct8fxurw

Level Up Your XCP-ng & XO Knowledge: Tips for System Management & Recovering Hosts From Failure
https://youtu.be/WvXTq3adN08?si=ruaG2tMuC9iBSmTq

@McHenry

I have a video breaking down how XCP-ng and XO work and at the 14:50 mark in my video here I break down how the XO Proxy works.

https://youtu.be/CEUFHudLO1g?si=UpoCWc6wCrK4iXFX

@nikade
Something to consider is that due to the way XCP-ng isolates for each disk for each VM for better security there can be some performance issues. But because it's per VM (unless your use case is to only running a single VM) this is less of an issues as most people run many VM's.

@olivierlambert

Very well said and an excellent read. Now I need to read https://un.curl.dev/

@olivierlambert

This was a full backup not a delta so that makes sense. I think I need more of my lab servers to be on 8.3 so I can do some more testing. I did not find any issues and nothing broke using it so I need to try harder.

I did some testing with the 8.3 and it all went smooth except for one thing. We did a backup of a VM on 8.3 and if we try and restore it to version 8.2 I get the error

"IMPORT_INCOMPATIBLE_VERSION"

which makes sense and it's just a lab system so nothing critical. Is there a way to bring it back to 8.2 or should I update the rest of my lab to 8.3?

@Danp Thanks, that makes sense. Perhaps is should show "Premium Feature" instead of "netdata plugin is necessary" when using the free versions.

@damjank
I have a video on dynamic memory here:
https://youtu.be/Lsi2-hAoKSE

@isener

I think the XO-CLI has to be registered with XO to get it working and seeing as you are locked out that is not an option. Maybe someone here will offer a way to edit the database if not I would just delete and rebuild XO.

@julien-f

Thanks, that fixed it!