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https://pve.proxmox.com/wiki/High_Availability

That's not possible from definition of the backup. Backup is backup state from past time, modyfiing backup = creating new backup from current time. Backup is read only. You never delete from backup. You delete backup usually via expiration parameters. GDPR has nothing to do with it.

Maybe enabled dhcp? This is unusual, there must be something extra on your PVE.

No, PVE can add and manage only PVE nodes. There is no sense to combine internal and external ceph nodes in the one ceph cluster.

Did you tried with? auto eno0 auto eno1

ad 1] if only OS, any good sata ssd will work. 25Gbps network has nothing with it. ad 2] shared storage for all VMs is normal. Better to use SSD with capacitor (Intel DC, Kingston DC etc) - depends on iops/size workload. ad 4] Again, use case depends on iops/size requirements. PBS has SSD as...

https://wiki.archlinux.org/title/Fstab

It's easy. You have 3/2 replication. You need 2 copies of the dataX (PG) to be ceph writable. If you don't have 2 copies of the dataX, dataX is readonly. So it depends on where are dataX placed on what disks on specific node, where disk fails.

You need to restore configuration from backup or set it Datacenter->Storage for HDD pool.

1] Proxmox on sd card is no go, use ssd 2] give enough space for pve + ceph (at least multipe 10 GBs) - updates, ceph (problem states) spamming logs, etc, it can save cluster from fail due out of space

This wii works when one disk available. What about multiple disks servers? The OP has /dev/sda and /dev/sdb, which disk is the correct 32GB?

Why you don't test it? Ofc it's possible.

I said, try lldpctl in VM. If it's enabled on undergoing device, you can see some info about it. But it will detect change after migration done.

Hi, we have some dells currently on 7.4 in production and none spare for testing, so i am unable to check if PVE8.2 with "Broadcom problematic" kernel 6.8 will have problem with network interfaces. firmware: Broadcom BCM57412 10G SFP Dual Port PCIE adapter -> 20.06.05.11 (available...

You can use lldp.

PVE GUI listen on every iface with ip so you can use this (routing, nat, etc). Or you can use reverse proxy (frontend lan, backend "wan") etc.

1] ceph rados bench 2] for compare https://forum.proxmox.com/threads/proxmox-ve-ceph-benchmark-2023-12-fast-ssds-and-network-speeds-in-a-proxmox-ve-ceph-reef-cluster.137964/

/etc/network/interfaces

1] dd test are useless, use fio, anyway, please post bechnmark results every time 2] use 1 gbit for VM's traffic, move public_network to 10 G (if it's possible, because public_network = proxmox mgmt network usually). or get 10 G switches (ebay, etc) 3] how is connected backplane to...

Possible tests: - direct connect without switch + iperf test - use 802.3ad mode and test vs switch or vs direct connected hosts