@MajorP93 said: What you are describing must be a storage live migration then (XenMotion). That should work across pools, yes. I stand corrected because I did not factor in this variant in my initial answer. Yes, that's it - sorry - I should have been more explicit, even if 'lumbers along' wasn't a hint //EDIT: also there is no such thing as non-pool hosts. Even a single host setup has it's own pool. Pedantic, but true I technically meant 'not hosts in the source pool' I guess.

@pdonias, @irtaza9 Can confirm cloud-init images does not allow you adjust disk size in v6 but does in v5 ui. I think the main issue is on cloud-init images you can not select a pre-configured custom config templates to apply to the cloud-init image in v6. This is true on v5 you have to select a config before you can incrase the disk size.

Just FYI, we had some issues with some Debian VMs for instance, with old kernel where the VM would suddenly take 100% CPU and would we completely frozen and unresponsive. It was in fact Debian enabling the suspend, the guest would suspend and trigger a bug in xen PV driver in the guest kernel which would never be able to wake up anymore. Newer kernel don't have this issue and are able to wake up. I'm quoting Debian here but it might very well happen on other distro

Ping @Team-Storage

Hi @dvdwx, RBAC is available only at the REST API level, not through the XO6 UI. UI compatibility with RBAC is currently under development. For the topology, this is something that has been here for a long time, so I may be wrong since I don't have the full history. However, if I look at the code, creating the topology selector requires knowing how many CPUs are available in the pool. Since a self-service user doesn't have visibility into the pool, they can't access this kind of information.

Thanks, that complicates the large-VM theory in a good way. If these are long-established VMs that backed up fine for years, "too much free space on a new VM" probably isn't the whole story here. Your deltas run from a completely different XO instance, on a different host, to different remotes, at non-overlapping times, so "deltas never fail, fulls do" might not be purely about job type, it could be tangled up with which instance or remote is doing the work. If you ever get the chance to run a full from the XO instance that normally handles your deltas, that would help tell whether the timeout follows the job type or the instance. I could easily be wrong, though, but that split feels worth isolating before we lean too hard on the free-space angle in https://github.com/vatesfr/xen-orchestra/issues/9181 . MajorP93 created this issue in vatesfr/xen-orchestra open Full backup fails on large VMs / VMs with lots of free disk space #9181

Also a question for @Team-XAPI-Network

That it's stayed quiet since you throttled Velero is a good sign, and it lines up with the concurrency theory rather than anything about the specific volumes. Bumping dom0 RAM makes sense too, since linstor-satellite spiking to roughly 8,700 log lines around the panic suggests dom0 was under real pressure right then. If it does come back, a xen-bugtool --yestoall bundle from the host that panicked, plus the Loki window you already have, would give @Team-Storage something concrete to line up against the DRBD side. I'm not sure whether the real fix sits in Velero's pacing or in how LINSTOR handles concurrent create/delete, but the reproduction you've narrowed down is genuinely useful. Fingers crossed it stays boring from here.

@michael.manley Would it be possible to backport the XSA-498 fixes? I've tried updating the SDK as a whole but it resulted in a lot of churn and caused errors elsewhere: https://github.com/xcp-ng/xenadmin/pull/271 The fixes to the SDK have been posted here https://github.com/xapi-project/xen-api/pull/7176 and here: https://xenbits.xen.org/xsa/advisory-498.html last-genius opened this pull request in xcp-ng/xenadmin draft Update the SDK to 26.16.0 #271 alexbrett opened this pull request in xapi-project/xen-api open [SDK] Corrected certificate validation for HTTP calls #7176