cluster

  1. O

    ISCSI LVM and cluster

    Hi to all just want to write it down, because it took my lots of time.I am trying to create a cluster with iscsi disks and lvm to test the cluster capabilities. My environment is cascaded,i mean .I have a Hp server with 3tb of disk and lots of memory. I installed Proxmox as Operating system...
  2. P

    At 3 Votes but still seeing "At least three quorum votes are recommended for reliable HA"

    I have set up a QDevice on a Raspberry Pi; with a 2 node cluster. All seems to be working and all nodes and the QDevice can see each other - see "PVECM STATUS" output below.... However, when I go to add a VM to HA, I am still getting the warning message - "At least three quorum votes are...
  3. J

    Which Logs Relate to the GUI?

    i have this issue with a server loosing connection to the GUI under certain workloads. or, the connection getting unstable. the VM's will for the most part keep running, though some might hang after a long time. i'm guessing it could be some kind of driver issue. i tried journalctl | grep...
  4. D

    Cluster with ZFS pool, Failed ZFS Storage device on one node, Zpool missing.

    Hi, I have a 5 node cluster setup with PVE 8.2.7, the nodes are using a pair of direct attached disks as an OS mirror and a ZFS pool on a 12 disk HPE D3600 Disk Enclosure using direct SAS connections to each node One of the nodes has lost connection to the ZFS pool. I am about to flatten the...
  5. herzkerl

    ERROR: online migrate failure - Failed to complete storage migration: block job (mirror) error: drive-efidisk0: Input/output error (io-status: ok)

    I've been giving "remote migration" a try for the first time today, moving machines live from a single host running ZFS to a new cluster running CePH. It worked tremendously well—without issues and on the first try—for all VM's but one, which always fails with the following errors. I tried...
  6. I

    [SOLVED] LVM Thin-pool on new node

    Hi everyone, Merry Xmas! I hope someone can help with the following basic problem: I have just created my first cluster by adding a single new node. I would now like to set up the internal SSD in order to transfer some VMs over to it. However, it's not working like the master node. fdisk -l...
  7. UdoB

    [TUTORIAL] FabU: can I use Ceph in a _very_ small cluster?

    Ceph is great, but it needs some resources above the theoretical minimum to work reliably. My assumptions for the following text: you want to use Ceph because... why not? you want to use High Availability - which requires Shared Storage (note that a complete solution needs more things like a...
  8. J

    Migrating from one Node Proxmox to clustered Proxmox

    Hello, i am planning to move my one node Proxmox server with VMs to a new 3 node Cluster with Ceph Pool. Now are my questions: 1. Whats the best way to move the VMs to the according Ceph Pools on the Cluster, with minimal downtime. 2. Is there a way for testing to just copy a VM from the...
  9. A

    Cluster/HA elegant but dangerous for small business - Seek forum input

    I have just finished up a full 3 node cluster/HA deployment in the lab, and I am finding it to be a time bomb for small/medium businesses due to too many single points of failure for the cluster. My concerns revolve around cluster corruption due to power failures outside of a data center...
  10. P

    Add old node to new cluster

    Hello! I have bough 2 new servers and I have created cluster with those 2 nodes, now I wanna add old node which has al my VMs to new cluster and live migrate all VMs. Thing is when I try to join to cluster from old node I get this error: root@home-node-5500:~# pvecm add prox-02.domain.tld...
  11. M

    [SOLVED] On node crash, OSD is down but stays "IN" and all vm's on all nodes keep in error and unusable.

    Hello, I work for multiple clients and one of them wanted us to create a Proxmox cluster to assure them fault tolerance and a good hypervisor that's cost-efficient. It's the first time we put a Proxmox cluster in Production environment for a client. We've only used single node proxmox. Client...
  12. T

    Proxmox cluster networking

    Hi everyone, I'm new here, basically this is my first post on this forum, and I do have an issue with my Proxmox. I do have two proxmox servers in cluster and, I try to add a Windows VM (from NODE1) to a domain, which is on NODE2. Unfortunately, there is no connection, the nodes have connection...
  13. C

    reboot whole cluster because of CPU throttling, after new update

    We have a cluster of 25 nodes, all machines are backed up on PBS. The last update to the latest version, on proxmox nodes on which we have VM and LXC, was carried out on 24.11. However, on 3.12 in the morning, a problem appeared with one node. CPU load on one node increased to 100%, it was...
  14. D

    HA Proxmox VE

    Dear forum members, I have encountered several questions regarding the operation of High Availability in Proxmox VE and would like to discuss them with you: Why does the pve-ha-crm failover process exceed a processing time of more than 60 seconds, with a significant increase in CPU usage...
  15. J

    Ist 2FA für den root-Account auf einem Node möglich?

    Hallo allerseits, ich bin quasi neu hier :). Ich betreibe mein Homelab mit 5 Servern seit Jahren unter ESXi und nun ist endgültig die Zeit gekommen, alles auf Proxmox zu migrieren. Ich habe das Thema Proxmox schon lange auf dem Schirm und mich immer mal wieder informiert, aber so richtig...
  16. M

    Issues with a 7-node cluster

    Hello everyone, I would like to share some issues I’m facing with a distributed 7-node cluster on Hetzner, hoping to gather suggestions or ideas on how to resolve them. Cluster Configuration: • Nodes: 7, distributed across Germany and Finland. • Purpose: Simplify VM migration and...
  17. C

    Limit the max number of VMs per host in HA environment

    TL ; DR - I don't care which host the High Availability VMs move to, as long as it doesn't exceed 4 VMs per host. Can this be done? Full Story - I am planning out a 4 host cluster (and 1 QDevice) of PVE with HA active using CEPH Storage and plan to run 8 Windows Server VMs across all hosts. I...
  18. A

    Can't connect to shell from web ui after change ssh port

    Hi, I have issued can't connect to shell another node pve cluster after I changed ssh port with custom port
  19. N

    Setting up a cluster with nodes in two different networks

    Hallo, ich würde gerne wissen, wie ich 2 Nodes aus verschiedenen Netzen zu einem Cluster verbinden kann. Ist dies nur über ein VPN möglich, oder gibt es andere einfachere Alternativen? Vielen Dank im Voraus für eure Antworten! ---- Hello, I would like to know how I can connect 2 nodes from...
  20. C

    Small Business Cluster with 2 New Servers and QDevice

    BACKGROUND I work for a small business that provides a 24 hour service on our servers and requires as close to 100% uptime as possible. Our old IT company sold us 2 identical Dell R420 servers several years ago with a single 6 core processor, 4x 3.5" 600GB 10K SAS HDD in RAID10, and 16GB RAM and...

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