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    [SOLVED] Ceph Node Removal Issue

    You need to do the following ceph osd crush rm osd_num ceph osd auth del osd_num ceph osd rm osd_num ceph osd crush rm nodename All the steps you have to do after stopping ceph mon and ceph mgr service on nodes to be removed To avoid rebalancing you may set nout and norebalance flags
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    VM IO freeze for 15 seconds when Ceph node reboot gracefully

    I had the same issue but with changing sysctl values in vm and settings recommend by Alwin, I am not facing issue now
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    NFS4 only servers for storage cannot be configured from interface

    Something like this dir: local path /var/lib/vz content snippets,backup,rootdir,vztmpl,images,iso maxfiles 0 shared 1 is_mountpoint 1 mkdir 0 and /etc/fstab You have following entry <ip of nfs>: <shared directory> /var/lib/vz nfs rw,hard 0 0
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    NFS4 only servers for storage cannot be configured from interface

    Just mount the nfs using fstab file and use the is mountable flag in storage.cfg
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    Errors after adding External RBD

    My usecase is working fine I have a VM on cluster1, I need to transfer this to cluster 2 as proxmox does not support migration from cluster1 to cluster2. 1) I have added ceph storage of cluster2 as external RBD in cluster 1 2) Create a clone of running VM and chose the destination as External...
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    Errors after adding External RBD

    But on the auth side I am still getting error but the pvesm error is gone Name Type Status Total Used Available % BackupNFS pbs active 4294967296 663574528 3631392768 15.45% BackupRBD rbd...
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    Errors after adding External RBD

    There was a typo mistake in the pool name of the external ceph It is working fine Thank you
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    Errors after adding External RBD

    All ceph are on 14.2.10
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    Errors after adding External RBD

    No only ssh works fine, rest is giving error root@inc1pve25:/etc/pve/priv/ceph# ceph -m 172.19.2.24 --user admin -s [errno 1] error connecting to the cluster
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    Errors after adding External RBD

    Yes all nodes are reachable no issues. I am able to login to all mon hosts of external ceph cluster from my cluster In the UI I get following error when i click on content on external Ceph rbd error: rbd: listing images failed: (2) No such file or directory (500)
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    Errors after adding External RBD

    I meant adding the external Ceph == This is the change
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    Errors after adding External RBD

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    Errors after adding External RBD

    I have followed this procedure https://pve.proxmox.com/wiki/Storage:_RBD
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    Errors after adding External RBD

    I have two proxmox ceph clusters , I have added the ceph block storage of one cluster to another another cluster as follows rbd: BackupRBD content images krbd 1 monhost 172.19.2.24 172.19.2.25 172.19.2.26 172.19.2.27 172.19.2.28 172.19.2.29 172.19.2.30 172.19.2.31...
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    Ceph 14.2.10 update

    I meant managing multi cluster , I have subscribed to devel list to get an update
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    Ceph 14.2.10 update

    Ok Ok When are you winking for Cross Cluster Authentication
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    Ceph 14.2.10 update

    it is already released apt-get dist-upgrade will upgrade it
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    Ceph Single Node vs ZFS

    Ceph cannot run on single node, it require minimum 3 nodes. So Ceph is out
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    VM Ghz Issue

    can you change the setting of VM from KVM64 to Host and try again
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    Incorrect RAM usage in webui for VM

    It is correct only. The memory showing available is actually a reclaimable space by kernel. Read the article attached for your reference. It is true for Ubuntu/RHEL/CentOS
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