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But will they retain once pve make firewall commands. I am going to try anyway...

Is it somehow possible to allow proxmox gui/ssh access to a mac address instead ip address. ?

Ok I will do that with Grafana. But there are different threads in forum about zfs with high io. So suspecting about zfs..

Lets say, a legal app in windows is eating resources, but why and how is it going that high io? Same windows on a real/physical hardware can not do that but on kvm it can.

I know some io actions in windows is happening like sql is doing some read/writes. But what I do not understand is how it can go that much and make vm unresponsive. Setting disk io limit does not work. So I feel like it is related to zfs ?

Sometimes, some kvms are having very very high IO like 1-2 G Disk IO: And that makes vm unresponsive. So is this related to Proxmox / VM itself or Zfs file system? Thats seems to be impossible inside vm but these vms have sql server installed. So where should go first you think?

You might be right but even with one node, I see these timeouts. Also in forum, there are other users..

Yes it works. I also tried without nat. Well I am trying with more resources... Does influxdb really need fast hardwares?

I have tried dedicated vds with public ip but I still see these timeouts. So I guess it is not on remote site (influxdb) but pve side. So I think I can ignore them. But they cause small short outages on pve graphs.

I am running influxdb in a nat of pve kvm environment. I see randomly: metrics send error 'Monitor': 500 Can't connect to 8.8.8.8:8086 (Connection timed out) but metrics are being collected. I have forwarded 8086 to influxdb internal nat ip (in pve). What could be issue?

Today, there was an issue on nas, pbs and metric servers and unreachable for a while (all are on same hardware) then all proxmox servers had issues those were trying to connect to it. Like disks status are unavaliable. Gui is not running correctly. Vm names were missing etc. We tried all...

Ok after changing network type to Realtek, it is fine now...

I have several nat moded vms in pve. I also installed pbs like this. So fas so good. But I noted today, it can not reach internet. Is there anything I need to allow? On same Pve, other vms are fine with internet, but pbs can not reach internet with internal ip (192.168.1.10). It can reach...

So you mean I do not need to worry about how old (xx days) first full backup is. ?

Do I need to create full backup regularly? I do not see such option. But AFAIK, when using incremental backups, time to time full backups should be taken. Is this same with pbs? Or I can just leave it one full backup and let rests for incrementals?

Yes you are right. But did not mention that this is already 3rd backup location in case DC burns out.

So using localhost as second disk vs real pbs is not same thing? How does it differ for "For proper ransomware protection" ?

One more thing, using so would benefit against Ransomware Protection ? I also did not understand well Ransomware Protection in pbs. In sections https://pbs.proxmox.com/docs/storage.html#ransomware-protection-recovery does it say it is possible that backups could be infected by ransomware. If...

Does it work stable? Any connection drops? I think this feature will be impelemented next versions.

I think it is not possible to mount pbs as iso or directory storage (yet). It only store backups for now.?