UdoB's latest activity

  • UdoB
    UdoB reacted to SeppeM's post in the thread 2 node cluster setup advice with Like Like.
    I have plenty systems I can use for quorum but indeed as you and @UdoB have said I will go trough our inventory here and try to create a 3rd actual server which will take over some VM's if 1 of the main 2 end up dying. If i'm not wrong I do have...
  • UdoB
    UdoB replied to the thread 2 node cluster setup advice.
    That decision is completely up to you :-) You seem to have some other equipment. I would check if a small VM or a container could be placed there - to implement the Quorum Device. On the other hand a physical third server, even if small and...
  • UdoB
    UdoB reacted to t.lamprecht's post in the thread Proxmox VE - Support Lifecycle with Like Like.
    We do not rely on npm for our user interfaces; the current Proxmox VE web interface uses only ExtJS and our own libraries. Some of the projects we reuse use npm themselves though, such as xterm.js and noVNC, but we also vendor these completely...
  • UdoB
    UdoB reacted to Johannes S's post in the thread Proxmox VE - Support Lifecycle with Like Like.
    I doubt this since afik ProxmoxVE doesn't use any npm packages and no security advisory on that attack is eported in the related forum section: https://forum.proxmox.com/forums/security-advisories.26/ The latest advisoryies cover some issue...
  • UdoB
    UdoB reacted to DeuSimon's post in the thread dump vs pbs with Like Like.
    Durch exkrementelle Backups sparst du halt sehr viel an Speicherplatz und ggf. an Traffic. Die die Inkrementellen Backups über PBS kann man auch verifizieren. Den USB Festplatten würde ich wohl weniger vertrauen. ;) Du könntest ja weiterhin in...
  • UdoB
    UdoB reacted to Onslow's post in the thread VM restore from PBS fails with Like Like.
    Maybe it's not the right trace (as you stated the error is random), but... I'd start with verification of the backups. https://pbs.proxmox.com/docs/maintenance.html#verification ... Aside from using verify jobs, you can also run verification...
  • UdoB
    UdoB reacted to bl1mp's post in the thread Chrony NTP Server ändern with Like Like.
    Hi Du kannst "chronyc sources -v" nutzen um eine Liste der aktuellen Zeitquellen anzuzeigen und um zu prüfen, ob die aktuelle Konfiguration valide ist. Falls Ceph eingesetzt werden soll, sollte das definitiv vorab passieren. root@pve:~# chronyc...
  • UdoB
    Use a hostname in your storage config and put the different IP address in the hosts file of each server?
  • UdoB
    Happy birthday to this 5 year old tread today :cool:
  • UdoB
    UdoB replied to the thread CEPH Experimental POC - Non-Prod.
    I am not a storage guru, sorry. But yeah, NFS is simple, old+stable and shared. A "simple" setup will create a SPOF though! For PVE I am utilizing ZFS with replication. It gives me the performance of local drives, does not introduce networking...
  • UdoB
    UdoB reacted to arankaspar1's post in the thread CEPH Experimental POC - Non-Prod with Like Like.
    I did read that a few times - you sent it to me before haha. That's a nice write up and easy read. I'm just trying to get shared storage. An iSCSI or NFS share would be amazing. Could you serve a share using those and mount it in Datacenter...
  • UdoB
    UdoB replied to the thread Chrony NTP Server ändern.
    "Muss" nicht, aber plausibler Weise: ja. man chrony.conf beschreibt die Details.
  • UdoB
    Ah! We will start upgrading the other servers shortly.
  • UdoB
    This has been discussed dozens of times already. That setup with those backup sizes won't ever perform well. You are using the two things that kill PBS GC performance: network shares and HDD only datastore. Your datastore size requires proper...
  • UdoB
    UdoB replied to the thread Ceph memory issue.
    Yes, I am/was keen to get some of them too. That's really a bummer :-( I wanted to put two to four OSD in each of it, the actual constrains should allow for four. Now look at https://docs.ceph.com/en/mimic/start/hardware-recommendations/#ram ...
  • UdoB
    UdoB reacted to Onslow's post in the thread Units of Measure on Network Traffic Graph with Like Like.
    No matter whether developers decided on bits or on Bytes, they should place on the graph the unit they chose: "b/s" or "B/s" (or "p"(p like per) for "/" ) Not typing the physical unit on a graph automatically brought down the test grade at my...
  • UdoB
    UdoB reacted to toto-ets's post in the thread Advice for cluster/ceph with Like Like.
    Hi friend, I can tell you that I have been studying this topic for months, between zfs and ceph, the problem is that in my case I have many vm that do different jobs, about 50 vm on 3 nodes, I started with HDD disks with zfs raidz but I had many...
  • UdoB
    ZFS is known to have bad performance with HDD's. While it may work, often it is suggested to add 2 smaller SSD's as special devices to your ZFS HDD pool to help with performance, even better use SSD's only. ZFS being a COW filesystem needs more...
  • UdoB
    UdoB replied to the thread The Kernel Crash: A Bug in ZFS.
    Well..., ZFS ARC does shrink if required. But it does so slowly. (Edit: ...and if it is allowed to by "zfs_arc_min" being lower than _max) Too slow to be fast enough if one VM (or any other process) requests too much memory at once. RAM is the...
  • UdoB
    UdoB reacted to MarkusKo's post in the thread The Kernel Crash: A Bug in ZFS with Like Like.
    You are running out of RAM Out of memory: Killed process 1925 (kvm) Maybe you should reduce vour VM's memory and check / limit ZFS arc cache https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_zfs_limit_memory_usage