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Not sure how this is relevent. But since you ask; no, I don't believe in clusters for Proxmox :) HA is IMHO grossly overrated and in many setups it causes more downtime because of added complexity than it actually saves uptime. Especially considering how rock solid a good server with ZFS...

True. I personally don't use Snapshots from live systems, only shutdown ones. Consistency is one reason, the other one would be that I don't want to store RAM and I even with fs-freeze don't trust my application to handle a rollback gracefully. Same for backups. For me personally, the use case...

I also had my issues with notifications on PVE and PBS and have some open questions still nobody was able to answer. And apparently, sendmail is legacy. So that is why I did the following: - Don't set backup jobs to "Auto". Set them to notification center. - In notification center create a...

Thank you for making my point :) I am suggesting that you have storage locally and not over a network. So with a local ZFS, and VM RAW disks, you can make use of the native ZFS snapshot feature. Which is (unlike QCOW I believe) instant. Proxmox offers a pretty good table what storage offers...

I updated some VMs from Windows 10 to 11 and see this error in the event log: Protokollname: System Quelle: Microsoft-Windows-TPM-WMI Datum: 15.11.2025 01:06:21 Ereignis-ID: 1801 Aufgabenkategorie:Keine Ebene: Fehler Schlüsselwörter: Benutzer: SYSTEM Computer...

I updated to PVE 9. Seems to work, at least for now :)

I am guessing you setup SMTP mail and not sendmail? You need to set the notification matcher below to send it to SMTP and not sendmail. So disable the default sendmail and enable your SMTP.

You press the snapshot button.

I have no experience with special vdev under Proxmox, only TrueNAS. But I think this won't work well, since you are not working with datasets but zvols. SLOG is probably also not helping, because your workload is probably not doing any sync writes? Are you sure that the pool is the bottleneck...

now it is happening to another VM too. Strange :confused:

Was more thinking about upgrading PVE. Clean install is not an option, since this is hosting an application.

Maybe :) I am not knowledgeable enough to use the right filters or knowing where to look. That is why was not able to find anything. Do you know where I should be looking? The linked powershell commands in the other thread did not find anything noticeable. My behavior is also slightly different...

I have a problem with only one VM. That VM for unknown reasons sometimes loses guest agent. This is pretty bad, because that makes also the backup impossible, since I do backups to PBS with stop mode. Is there a known issue with this config? I had it once before, did not think much of it and...

So, because I was unable to solve this issue, I set the backup job to use Notification mode: "notification center" and in there I set the a match based on severity with all but info and notice, and there I only use gmail as target.

So to summarize where we currently are: Setting "Default (Auto)" for a backup notification, defaults to the disabled sendmail instead of the enabled SMTP. At least that is what I think is happening.

@Onslow, could you delete the other one too? You find it be searching for ::2 It is not a huge deal, since it does not allow any incoming traffic anyway. I would also not care if it were my ISP (I have public DNS anyway) but it is the IP of one of my clients.

Ups, forget the censor that IP, would you mind editing your text? But thank you for that hint, I think I now know what went wrong. PVE used sendmail (with its IPv6) instead of the gmail smtp server to send the mail to me. But why? It is disabled after all.

Yes it does. Maybe it was a hiccup between with gmail and outlook? Because sending a test mail does work. Here is a the full mail that informed me about the error. The mail was sent from mail@gmail.com to mail@mydomain.com (Exchange). This is the mail system at host pve.home.arpa. I'm sorry...

nope, just run the exe. You do need a reboot though. And as always, I recommend taking a ZFS Snapshot before doing any major update, like this one.

Hi mario Sure, here you go smtp: gmail from-address mymail@gmail.com mailto-user root@pam mode tls server smtp.gmail.com username mymail@gmail.com matcher: default-matcher comment all notifications with gmail mode all target...