Hello
I checked on my all clusters everywhere OSD’s not using cluster network.
Here is another example in my lab where I have three hosts in vlan1 and vlan2
running on one proxmox server and here also same thing…
No MTU change, these are default to 1500.
I don’t understand what I am missing?
root@ceph-01:~# ceph config dump |grep -i network
global advanced cluster_network
192.168.2.0/24
*
mon advanced public_network
192.168.1.0/24
*
root@ceph-01:~# ceph osd find 1
{
"osd": 1,
"addrs": {
"addrvec": [
{
"type": "v2",
"addr": "192.168.1.212:6800",
"nonce": 811374774
},
{
"type": "v1",
"addr": "192.168.1.212:6801",
"nonce": 811374774
}
]
},
"osd_fsid": "3abeb495-fe1f-4d4a-8263-b920f552681e",
"host": "ceph-02.tinihub.com",
"crush_location": {
"host": "ceph-02",
"root": "default"
}
}
public_network 192.168.1.0/24
root@ceph-01:/etc/netplan# telnet 192.168.1.212 6800
Trying 192.168.1.212...
Connected to 192.168.1.212.
Escape character is '^]'.
ceph v2
^]
telnet> quit
Connection closed.
root@ceph-01:/etc/netplan# telnet 192.168.1.212 6801
Trying 192.168.1.212...
Connected to 192.168.1.212.
Escape character is '^]'.
ceph v027\0b^]
telnet> quit
Connection closed.
cluster_network 192.168.2.0/24
root@ceph-01:/etc/netplan# telnet 192.168.2.211 6800
Trying 192.168.2.211...
Connected to 192.168.2.211.
Escape character is '^]'.
ceph v2
^]
telnet> quit
Connection closed.
root@ceph-01:/etc/netplan# telnet 192.168.2.211 6801
Trying 192.168.2.211...
Connected to 192.168.2.211.
Escape character is '^]'.
ceph v027}/^]
telnet> quit
Connection closed.
root@ceph-01:/etc/netplan# ls
00-installer-config.yaml 01-installer-config.yaml
root@ceph-01:/etc/netplan# cat 00-installer-config.yaml
# This file is generated from information provided by the datasource. Changes
# to it will not persist across an instance reboot. To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
ens18:
dhcp4: false
addresses:
- 192.168.1.210/24
routes:
- to: default
via: 192.168.1.254
nameservers:
addresses:
- 192.168.1.201
version: 2
root@ceph-01:/etc/netplan# cat 01-installer-config.yaml
# This file is generated from information provided by the datasource. Changes
# to it will not persist across an instance reboot. To disable cloud-init's
# network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
ens19:
dhcp4: false
addresses:
- 192.168.2.211/24
nameservers:
addresses:
- 192.168.1.201
version: 2
Regards
Dev
> On Jun 22, 2025, at 1:50 AM, Michel Jouvin <michel.jou...@ijclab.in2p3.fr>
> wrote:
>
> d of ok before the upgrade, for me there is no reason to reformat OSDs or
> change anything to the cluster c
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