@MathieuRA Dont think you pushed this already unless i am mistaken. But on Commit 9226c One vm populates the backup second on dashboard while the other do not. this happens to be the same vm check to confirm your changes. I dont recall if i checked other vms. But on Commit 9226c 1 vm dashboard loads correctly.

@Andrew the NBD warning is probably doable. the other solution is not : NBD is mandaotry to use CBT ( the fallback with export can't work without a real snapshot )

@User-cxs said: when I want to shut down a node with VMs on it, the HA will cause the following We are still waiting for your question. P.S. The solution is in the GH issue that I previously linked.

@User-cxs dans ce cas en l'occurence de coupures intempestives au niveau réseau (scrute de plus pret le routage entre ces 2 subnets (j'ai supposé que c'etait du /24)) tu peux avoir le comportement erratique ou tout disparait et fini par revenir monitore un ping du xoa vers les hosts, voir si tu as des pertes de paquet de temps en temps. au moment ou les hosts disparaissent, essaie de pinger les hosts depuis le XOA... a mon avis un probleme de réseau quelque part...

Okay waiting for your feedback

yes, the last changes are released in latest ( 6.3) tomorrow if everything proceed as intended mostly : https://github.com/vatesfr/xen-orchestra/pull/9622 https://github.com/vatesfr/xen-orchestra/pull/9557 and this one was in 6.2 : https://github.com/vatesfr/xen-orchestra/commit/e36e1012e20c9678efa15148179941cb284c39a6 that's nice to hear fbeauchamp opened this pull request in vatesfr/xen-orchestra closed feat(xo-server): use index for getAllUnhealthyVdiChainsLength #9622 fbeauchamp opened this pull request in vatesfr/xen-orchestra closed fix(backups): better handling of generator cleanup #9557 0 fbeauchamp committed to vatesfr/xen-orchestra fix(xo-web): reducing polling for patches and license

Good moaning... The solution was pretty simple: a toolstack restart on the master (xcp83) did get all back on track and it now allows me to move the systems with a simple shutdown/start.

Not sure the issue, but rebooted the host and everything is fine again. I definitely had rebooted the host twice though after applying the patches and physically unplugged and moved the host.

@olivierlambert & @mathieura thanks for the speedy response. Duly noted, very much appreciated.

@bvivi57 Hello ! Déjà bravo pour le travail d'écriture, faire plusieurs articles aussi long, avec screenshot et commandes CLI intégré, c'est un boulot de fou ! J'ai rapidement parcouru tous tes articles, je prendrais le temps de tout relire pour te faire un feedback complet avec quelques tips, si tu le souhaites ! Sur le dernier article, j'ai vu que tu as redémarré xo-serveur parce que tu n'arrivais pas à te reconnecter au master: tu peux (dans XO5, pas encore XO6) juste aller dans setting server, et cliquer sur le bouton "disconnect" et "reconnect". Ça va forcer une reconnexion à la XAPI, et si elle est disponible, ça va reconnecter ton pool instantanément à ton XO. Redémarrer un XO, surtout si tu as plusieurs pools, peut avoir certaines conséquences : Si tu as des backups en cours, ça va les kill instantanément, pareil pour les migrations entre deux pools différents. Il faut y aller doucement avec un systemctl restart xo-server En tout cas merci pour ces articles, je suis heureuse de voir que la communauté francophone s'intéresse de plus en plus à l'écosystème XCP-ng/XO (et je dit ça en tant qu'"early" qui utilise la solution depuis... longtemps ! )

@AlexanderK The ronivay script requires you to select an option (#2 to update). I look at things this way, it's good to have more people working on scripts like this.

There's no small contributions, every one of them are great & welcome!

Yes indeed, that's expected. XAPI affinity is on VM boot, not in the VM life. Then, it's the work of the load balancer.

@MajorP93 This was also my thought, the disconnection method you mentioned, I was just wanting some feedback about that. I do have to be a bit careful because the migration must happen and then the VM on VMware must go back online while I work with the vendor to migrate all the rest of the data. As for the bigger than 2TB issue, that won't be an issue for me. This VM is HUGE but it's because it's thick provisioned and no longer needs to be, the new VM will have like 8 disks but none of them will be over 2TB (most will be less than 100GB). So I am thinking using V2V and just powering off the VM on VMware, disconnect the unneeded VDIs, then migrate, then reconnect those VDIs and power the VM back on.

I can confirm that when using Citrix/Xenserver guest utilities version 8.4 (https://github.com/xenserver/xe-guest-utilities/releases/tag/v8.4.0) memory ballooning / DMC is working fine. After live migration the RAM of the linux guest is expanded to dynamic_max again. So this issue was in fact caused by Rust based xen-guest-agent. For now I'll keep using Citrix/Xenserver guest utilities on my Linux guests until the feature is implemented in Vates rust-based guest utilities. Best regards

@JSylvia007 Sorry, I'm really late to this thread, but note that backups can become problematic if the SR is something like 90% or more full. There needs to be some buffer for storage as part of the process. The fact you could copy/clone VMs means your SR is working OK, but backups are a different situation. If need be, you can always migrate VMs to other storage which is evidently what you ended up doing, which frees up extra disk space. Also backups are pretty intensive so make sure you have both enough CPU capacity and memory to handle the load. Finally. a defective SR will definitely cause issues if there are I/O errors, so watch your /var/log/SMlog for any such entries.

@TeddyAstie I hadn't seen anything special was needed in a VM other that a kernel new enough for support which 6.17 has, is there more to the story with adding things to Ubuntu?

I have two PE R630 and one PE R730xd. The two R630s show the IPMI data in XO but the R730xd does not. If I run ipmitool sensor from an ssh session, I get very similar data back on the 730 and 630. This isn't critical to me, just letting you know that there are cases that functioning ipmitool on a Dell does not seem to be enough to show it. There are some differences in the labels. The R730 has "Fan1 RPM", "Fan2 RPM" while the R630 has "Fan1A", "Fan2A", "Fan1B". Most of the other interesting fields seem to have the same names but the order is a bit different and I didn't do an exhaustive comparison. It's very cool that you are surfacing this data now.