Recent content by Spiros Pap

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    Where VLAN tagging of the Ethernet Frames take place?

    The ethernet frames from the VM come from the tap adapter. The VLAN tagging of these frames happen when the packets are processed by the bridge, You can see the vlan tag with : bridge vlan show dev tap100i0 port vlan-id tap100i0 444 PVID Egress Untagged
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    lvm stuck

    When i do "systemctl status multipathd" I am getting: multipathd[3683]: sdbd: path wwid has changed. Refusing to use What does this mean? Any ideas what might be causing this?
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    lvm stuck

    Hi all, I am once again in the dire situation where one proxmox node has problems with one multipathed iscsi device and it stopped responding to lvm commands which are stuck forever. I have tried many things to restore the iscsi device but I haven't managed to do it. The question is if there...
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    Ceph OSD rebalancing

    Well this tend to be funny: I did a "ceph osd set-require-min-compat-client luminous" which allowed OSDs to be able to rebalance and then a "ceph osd reweight-by-utilization" to make it rebalance OSDs. The result was: Before: ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP META...
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    Ceph OSD rebalancing

    Well, I chose 2/1 because I usualy see raid5 for SSDs on enterprise storages, but Ok, your comment is noted (about the 3/2 size/min_size). I have only one pool on the ssds, so the target_ratio should really be 100%. The output in my posting was part from the "ceph osd df tree" command. Now...
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    Ceph OSD rebalancing

    Hi all, I have a setup of 3 proxmox servers (7.3.6) running Ceph 16.2.9. I have 21 SSD OSDs, 12*1.75TB,9*0.83TB. On these OSDs I have one pool with replication 1 (one copy). I have set the pg_autoscale_mode to 'on' and the resulting PGs of the pool are 32. My problem is that the OSDs are very...
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    ceph: unable to create OSDs over iscsi

    Well yes, forums are full of advise for ceph/zfs that OSDs/disks should rely on local storage. While both ceph/zfs are built with the assumption of local disks for perfectly valid reasons, you can always remap these reasons to your environment, take your risks and create something that suits...
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    ceph: unable to create OSDs over iscsi

    HI all, I have a dozen MD3800i 100TB storage arrays that I can reach over 10G iscsi. I would like to create ceph OSDs on these 100TB iscsi disks in order get the best of Ceph's redundancy (replication etc) for backup purposes. When I try to create the OSD, it fails: #pveceph osd create...
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    cpu pinning for VMs (PCIe passthrough)

    Hi all, I have a VM that runs a passthroughed ethernet x710 adapter with dpdk (danos). Since dpdk does polling, the CPU is occupied 100% all the time. So, i would like to pin specific cores to this VM (in proxmox), in order to disallow the host task scheduler to change the association of the...
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    Upgrading cluster from 6 to 7 by reinstalling on new nodes

    Hi all, I would like to upgrade my cluster from 6 to 7 and at the same time I would like to upgrade the hardware (replace the servers with new ones). Now, I have 3 nodes with pve6. I am thinking of installing the 3 new servers with pve7, adding them to the cluster and then removing the old...
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    proxmox 7 repos

    Hi all, We have recently upgraded proxmox from v6 to v7. I noticed some warnings on the Updates/repositories page and I have a few questions. - I don't have a subscription but i have the no-subsctiption repo enabled. I get a warning that the no-sub repo is not production ready. - If i disable...
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    [SOLVED] Duplicated ceph mon, mgr and mds in ceph overview

    Well, indeed on of the servers includes the domain in the hostname (px1.xxx.com) but after i chnaged it, and restarted the mon on px1 the problem was not solved. Now after a few tries the mon does not run. The config files are the same as before but the ceph-mon does not run. Any ideas on how...
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    proxmox 6 ceph upgrade

    Hi, I tried with a clear cache and the output is the same. The output section of your command that has to do with the mons, is this: "mon" : { "px1@px1" : { "direxists" : 1, "service" : 1 }, "px1@px1.xxx.com" : { "addr" : "10.11.20.129:6789/0"...
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    proxmox 6 ceph upgrade

    Hi all, I upgraded my cluster from v5 to v6 and now I want to upgrade ceph from luminus to nautilus. The problem is that the proxmox gui shows one cluster member two times, as you can see in the attached picture. ceph cluster heath is: ceph health HEALTH_OK root@px1:~# ceph status cluster...
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    How to disable fencing (temporarily)

    Hi all, When I do upgrades to proxmox or other actions that jeopardise the clusters health (network stuff), I feel the need to disable the cluster/watchdog/fencing components of promox, in order to do the actions without the danger of a node rebooting because it was fenced. So, what is the...

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