@olivierlambert busy writing/adapting de RBD SR and running tests. once I got the results and thins finalized I'll post and update with the RBDSR file (based on @benapetr)

So far update from XS7.2 to XCP-ng 8.0.0RC1 went fine on Intel E5430.

New version:

https://github.com/dicode-nl/xcp-ng-ceph-rbd/releases/tag/v20260903

This one includes native Ceph rbd SXM over SMAPIv3!

GitHub updated with the latest commits and changes.

As always, use with caution. I did run a lot of test scenario's but please do test yourself and let me
know your findings!

Did a lot of work this weekend and added more to the volume and datapath.
in native mode, everything is rbd native including CBT! still working on SXM
in tapdisk mode, everything is working with optimized rbd calls except SXM
in qemu mode everything works by using qemu-dp and also SXM in MSAPIv3

Huge improvements made, but qemu is the slowest mode due to extra nbt hop.
I only provided tapdisk and qemu modes to get more information on how CBT works and how SXM works. Right now I'm using that knowledge to provide SXM over native rbt. I have some good ideas but need to figure out how to make them work.

I've also made a backport to ceph v15.2 which runs on dom0 to also include the newer cephx authentication protocol. This is because the ceph dashboard cannot provide a diff between snaps (which is needed for CBT) but a pull request is pending to have this working in the future without the need for rbd userspace.

I'll update my git and packages later this week.

For these interested and for further development:

https://github.com/dicode-nl/xcp-ng-ceph-rbd

@olivierlambert any interest in fixing this for SMAPIv3 for inclusion into XCP 9?