Recent content by decibel83

  1. ZFS sync=disabled safeness

    No, I don't have a SLOG, do I need it even using SSD and NVMe drives?
  2. ZFS sync=disabled safeness

    Because I'm getting 10x fsyncs with sync disabled, and virtual machine are much much more faster.
  3. ZFS sync=disabled safeness

    Thanks. Could you help me to understand which are the possible events which causes last writes to be lost? Power interruption without UPS Hard shutdown Kernel crash on Proxmox host Kernel crash on virtual machine? Qm process or container kill from Proxmox host? Snapshot? Other? Are snapshots...
  4. ZFS sync=disabled safeness

    Hi, is it safe to set the ZFS sync as disabled on Proxmox 6 if I have a working UPS protection? I see that fsyncs increases a lot with sync disabled, will this corrupt some snapshot? Thanks!
  5. Cannot boot PVE 6 on a IBM server

    Hi, I installed PVE 6 with ZFS on two SSD drives on an IBM x3650 M3 server with a H200 SAS controller cross-flashed to IT mode. The installation process ended correctly but after the reboot the server does not boot, nor in UEFI mode nor in legacy mode. If the USB drive is plugged into the server...
  6. Does Proxmox need fast storage?

    Hi, I have a simple question which I would like to share with because I’m interested in you point of view. On a Proxmox server I have fast storage (SSDs or NVMe) and slow storage (SAS or SATA). My fast choice could be to install Proxmox on fast storage and use it also for storing virtual...
  7. [LXC Stability] Cached memory leaks (killing processes (wtf!))

    Hi, I'm suffering this problem on two different Proxmox hosts with two LXC containers: [338962.945187] Memory cgroup out of memory: Kill process 33823 (celery) score 6 or sacrifice child [338962.946422] Killed process 33823 (celery) total-vm:212304kB, anon-rss:51236kB, file-rss:28kB...
  8. Why my container is swapping?

    Thanks. Just to be sure: are you referring to the following workaround? Is it correct that I should apply this on the host node for Proxmox itself and containers and on VMs? Thanks!
  9. Why my container is swapping?

    Thanks! Will moving to KVM solve this problem?
  10. Why my container is swapping?

    Hi, I have a container which has very slow performance, and trying to debug this i realised that it's swapping so much even if it has a lot of RAM memory available: These are the status graphs of the hypervisor: As you can see the host does not seems to be overloaded. Another...
  11. Cannot install on 3 NVMe with RAIDZ-1

    Do you have any prevision about when this will be solved?
  12. Cannot install on 3 NVMe with RAIDZ-1

    Hi. I'm trying to install Proxmox 5.4 on RAIDZ-1 on 3 NVMe drives, but I'm receiving the error "unable to create zfs root pool". NVMe are correctly recognised and I can configure RAIDZ-1 on them: But I'm receiving the following error: Could you help me please?
  13. Broken cluster after upgrade

    I managed in solving the problem running: root@node08:/# systemctl start pve-cluster root@node08:/# pvecm updatecerts (re)generate node files merge authorized SSH keys and known hosts root@node08:/# apt-get -f install Reading package lists... Done Building dependency tree Reading state...
  14. Broken cluster after upgrade

    Hi, today I made "apt-get dist-upgrade" to my Proxmox hosts, but the upgrade did not finish well and after the cluster was broken. The problem was on the upgrade of pve-manager which cannot be started: root@node07:/home/mattia# apt-get install pve-manager Reading package lists... Done Building...
  15. Unstable cluster

    root@servir01:~# omping -c 600 -i 1 -q servir01 servir02 servir03 servir02 : waiting for response msg servir03 : waiting for response msg servir02 : waiting for response msg servir03 : waiting for response msg servir02 : joined (S,G) = (*,, pinging servir03 : waiting for response...


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