replication

  1. M

    Smaller size OSD - bigger VM, what happening? Ceph OSD, replication settings.

    Hi! Please help me understand for be clear: Example for sure, all works fine, Ceph health OK, VMs are stored in Ceph, by default only node1 running a VMs: node1: 1000 GB OSD (1 HDD) node2: 1000 GB OSD (1 HDD) node3: 1000 GB OSD (1 HDD) node4: 500 GB OSD (1 HDD) node5: 500 GB + 500 GB OSD (2...
  2. M

    [SOLVED] ZFS replication for VMs with multiple disks

    Hello I was just testing Proxmox 6.2 and I was wondering why only the second disk of the vm was transferred fully, and first one was just incremental (and the zvol was there). Well, actually it seems that I've just set a replication (from GUI) and forgot about it :p. But the question remains...
  3. M

    [SOLVED] How to wake and shutdown spare server for replication jobs?

    I have a PVE cluster with a backup server which I would like to keep turned off most of the time as a "warm spare". Would it be possible to automatically issue a wake-on-lan command before replication jobs are scheduled to run, and shut the node down after all the replication jobs have been...
  4. P

    HA for replicated VM

    Hello I have read documentation and topics on forum about this subject but cannot find a clear answer (and the thread How does Replication work in a HA environment? is quite old , 2017) If I have a replicated VM betwen the 2 nodes I'll put this VM in HA configuration, Will HA process use the...
  5. M

    VM Replication - Two-way?

    Hello community, Love Proxmox. So much fun to work with! I have a few VMs with local ZFS storage and a 2-Node (still figuring out where to install the 3rd) setup. I setup replication for a VM from node A (where it is currently running) to node B. Does a replication from node B to node A make...
  6. H

    [SOLVED] Wie kommen die User auf den neuen Server nach der Replication?

    Hi Community, Im Moment befasse ich mich mit dem Replication Feature von Proxmox. Aber da stelle ich mir die Frage wenn mein 1 Server ausfällt, wie kommen meine User dann auf den zweiten Server? Der hat ja eine andere IP etc. wie kann ich das konfigurieren ?
  7. T

    ZFS replication without FS freeze

    I have 2 Proxmox 6.0 nodes with replication setup between the nodes for a single VM. The replication works, but the freeze and thaw of the guest filesystem causes problems with the application running in the VM. It can't handle the brief pause. Is there a way to do the replication withOUT the...
  8. R

    Question Pattern Replication Schedule

    Hi, we want to replicate our machines every 15 minutes. We scheduled the replication before every two hours: */2:00 Now we want to switch to each 15 minutes but not from 0 to 6 o-clock: mon..sun 06..23:0/15 This works but we do not understand the ':0' part in the pattern. What is the meaning...
  9. D

    Operational issues with ZFS and pvesr

    Ever since Proxmox 6 came out, we moved towards using Proxmox with ZFS across all physical servers. That is because with the new corosync, we don't need to have multicast traffic between those servers. We have successfully virtualized servers that were previously on bare metal and even started...
  10. Y

    Bug bei replizieren

    Hi, ich habe testweise 2 Proxmox zu einem Cluster zusammengeschlossen. Beide sind mittels nativer ZFS-Encryption verschlüsselt. Wenn ich jetzt von Node A eine VM auf Node B Replizieren (in GUI Konfiguriert) möchte kommt im Log die Meldung: cannot send...
  11. A

    [SOLVED] Replication not possible ? Cluster + ZFS

    Hi, I'm trying to do replication but it's not working, here's my setup. Cluster of 3 nodes. Local ZFS storage on each node. Each ZFS pool has to have a different pool name, this seems to be a consequence of each node being part of the cluster. When doing the replication it asks that the...
  12. Z

    sharing storage for local (ISO,CT templates)/local-lvm(vm backup)

    Hello, I need sharing for more than one Node for sharing (local storage) for ISO,CT Templates to another Nodes without need to SCP or upload it,so what the preferred Data method to use NFS,Ceph...?supported by proxmox (need to installed on host) or created VM and using like FreeNas and How to...
  13. T

    Replication between clusters/datacenters

    hi there. I have 2 CPD in different buildings, connected with 10Gb Fibber, 1 is the production the 2 is the backup disaster recovery. how could I replicate every x time from production CPD VM to the Disaster Recovery CPD ? Both configuration is similar, 3 servers and 1 SAN storage. thank you !
  14. N

    Online / Live Migration with ZFS-Replicated local VMs?

    Hi There, Is there a technical reason why Online / Live Migration of VMs that are replicated across local disks (from Node 1 local-zfs to Node 2 local-zfs) does not currently seem to be permitted? If this is not currently permitted / available, is it planned to be made available in Proxmox 6...
  15. rholighaus

    Feature request: VM migration (restart mode)

    In a replicated ZFS environment, containers can be easily migrated from one node to another, as the only supported migration mode of a running container is restart mode. It works quick and reliably if replication happends e.g. hourly or more often. For VMs, the system does not allow to select...
  16. N

    SSH between nodes and replication

    Hello everyone, I'm currently moving my virtual machine infrastructure from VMWare to Proxmox and have noticed a few things that seemed odd (at least to a beginner). Firstly, I've been able to ssh between the nodes in my cluster without entering the password (for example, I'm logged in as root...
  17. Y

    Host key verification failed

    Hello, just added 2 new nodes to my cluster, without errors, but when i try to replicate i have this error: 2019-06-18 10:44:01 108-2: (remote_prepare_local_job) Host key verification failed. 2019-06-18 10:44:01 108-2: (remote_prepare_local_job) 2019-06-18 10:44:01 108-2: end replication job...
  18. A

    Host was reset randomly

    Hi all! I been getting some trouble with my hosts randomly rebooting on me. It has happened a few times now and I don't know how to investigate it. Below are the syslogs immedietely before and after the last reset. Notice the "^@^@^@^@" which I would guess is where something (watchdog?) reset...
  19. rholighaus

    ZFS Replication running away?

    I have the following file system that gets replicated to two other PVE nodes: root@carrier:~# zfs list -ospace -tall -r rpool/data/subvol-104-disk-2 NAME AVAIL USED USEDSNAP USEDDS USEDREFRESERV USEDCHILD rpool/data/subvol-104-disk-2...
  20. rholighaus

    ZFS snapshots and replication: Sufficient as backup?

    Hi all, We are currently running a PVE cluster with multiple machines and serve about 15 LXC containers and 10 VMs. We are using PVE replication (every 15min) to onsite PVE machines and znapzend to create hourly snapshots that are also replicated off site. This should protect us against a...

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