@stormi I'm also getting error on some VMs while trying to export a disk and also trying to even start some VMs from NFS (that were fine before).
xo-server[565]: 2026-05-13T02:53:15.746Z xo:api WARN admin | vm.start(...) [2s] =!> XapiError: INTERNAL_ERROR(xenopsd internal error: Storage_error ([S(Illegal_transition);[[S(Activated);S(RO)];[S(Activated);S(RW)]]]))
xo-server[565]: 2026-05-13T02:53:40.652Z xo:api WARN admin | vm.start(...) [3s] =!> XapiError: SR_BACKEND_FAILURE_46(, The VDI is not available [opterr=VDI 399734eb-5965-4799-ac36-f6dd774db867 not detached cleanly], )
@taghjichte Do you have realtime/low latency audio requirements or is it simply for normal playback (music etc)? Virtualization will work fine for typical playback but for low latency, you might want some specific tuning. Also, you might want to test DPC latencies with the Xen drivers when there's I/O activity. Also, a PCI card should be more reliable than an USB card in most cases.
@Mathieu-L
linstor n l was included in my original post.
All nodes were updated to May 2026 Security and Maintenance Updates for XCP-ng 8.3 LTS, all nodes were restarted.
May 2026 Updates #2 for XCP-ng 8.3 LTS was released, and a couple days later I installed on all hosts. No host restarted.
When xen04 was restarted, that is when this issue happened.
I had used systemctl restart linstor-controller here (https://xcp-ng.org/forum/post/105309) to restart the controller.
