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Thx. Got it working after some fights, trials and errors due to my network config... which pveceph DOES NOT LIKE if you have anything special. RTFM is correct... but slightly obscure. Secret weapon is to manually edit ceph.conf and give explicitly all the values needed in public network /...

How many of these are due to botnets or other bad-guys-tests? tail -200 /var/log/auth.log Which firewall / iptables have you enabled at the VM level?

There is this delicate time where you have just one server working... and the cluset somehow expects a quorum of 2 use "pvecm e 1" to tell it that the expected quorum is 1, not 2. You should then have wtite access to /etc/pve. If this dir is empty or read-only, your secret weapon is to use...

Would 2 (nodes with) OSDs and 3 (nodes with) MONs work?

Does this thera implies that ceph reads addresses for the interfaces file? Rather unfortunate for me since the hi-speed private network of my hosting company is dhcp based, and so the IP is NOT in the interfaces file (even though it does not change!)

seems you are low on free mem you might test the impact of forcing the system to flush cache to disk. Not sure what would be really the impact on a proxmox system...so I would probably start running a cron job which monitors free memory and see what is the last limit before a crash, and check...

Bios: you have disabled ally dynamic cpu / cores / ram frequencies, right?

all ok when you apt-get update and dist-upgrade?

Once this is done, need to restart at minimum: service pve-cluster restart (if any problem here, restart corosync and check that /etc/pve/corosync.conf is the expected version) service pvedaemon restart service pve-proxy restart ... on the 3 nodes if gui admin still does not work

Thx. I was not sure of the "precedence" order.

In a working stable cluster, how many different corosync.conf files should there be and what is their precise role? Eg: - server Node1 -- /etc/corosync/corosync.conf -- /etc/pve/corosync.conf - server Node2 -- /etc/corosync/corosync.conf -- /etc/pve/corosync.conf

can you log into pve02A thru the GUI interface? - thru pve01A - thru pve01B - thru pve02A

on pve01B I would also compare /etc/corosync/corosync.conf and /etc/pve/corosync.conf and check /etc/pve/nodes both on pve01B and another node

Any special action by munin and live_monitoring? Any special restriction on snmp/xinet or iptables?

Did you solve your problem by enabling multicast?

Thx for these suggestions. In my attempts to succeed without re-installing, I have followed a different route which seems to work, although yet not totally. The main point was around the bindnet address which seems to be implicitly defined as /24. I found in...

I must confess I find quite frustrating that neither on this forum nor on the wiki I can find step by step scenario for newbies starting from scratch. So many things can and do go wrong that testing random tricks explained here and there simply dors not work:they certainly need to be done in a...

Thx for your suggestion Copied from /etc/corosync to /etc/pve Does not succeed either

No idea or suggestion?

Hi, I'm getting mad at trying to configure this. After my last resinstall of the 3 nodes I did the following: (sorry, for legacy reasons my nodes are called mynode0, mynode3 and mynode4) - each machine has 2 eth network connection, a public one and a "private" one, which is in fact on a...