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    VM can't start on DRBD9: Could not open '/dev/drbd/by-res/vm-x-disk-1/0': Permission denied

    I was finally able to get my VMs back by setting the primary on each VM in /dev/drbdpool/. However, it has happened again and I was able to successfully get my VMs running except for one, so I just used a backup of said VM. However, when I tried to remove the hosed VM, I am unable to delete it...
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    VM can't start on DRBD9: Could not open '/dev/drbd/by-res/vm-x-disk-1/0': Permission denied

    Were you ever able to correct this problem? I am experiencing a very similar issue. I had a power failure which resulted with two of three machines in cluster powering down. The third machine is for quorum only and doesn't contain a DRBD disk. Now, I am unable to start any of my VMs which...
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    (InfluxDB or Graphite) to Grafana

    Since making the changes you recommended, it has all worked out! Thank you. Now I am trying to graph the information in Grafana, however I am unable to graph the CPU... Here is how I have my string set up in Grafana: SELECT mean("value") FROM "cpustat" WHERE "object" = 'nodes' AND "host" =...
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    (InfluxDB or Graphite) to Grafana

    The results of pveversion -v is the following proxmox-ve: 4.2-48 (running kernel: 4.4.6-1-pve) pve-manager: 4.2-4 (running version: 4.2-4/2660193c) pve-kernel-4.4.6-1-pve: 4.4.6-48 lvm2: 2.02.116-pve2 corosync-pve: 2.3.5-2 libqb0: 1.0-1 pve-cluster: 4.0-39 qemu-server: 4.0-74 pve-firmware: 1.1-8...
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    (InfluxDB or Graphite) to Grafana

    Has anyone set this up yet? I am attempting via following the wiki instructions... https://pve.proxmox.com/wiki/External_metric_server I have put both Graphite and InfluxDB into the status.cfg file... However when I perform a tcpdump, I do not receive any successful packet transfers. tcpdump...
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    QCOW2 Unavailable - Grayed Out - 4.2

    What is your underlying storage pool format? Different hdd formats are available on different storage schemes, i.e. zfs only allows the raw format.
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    Distributed Storage

    Hello! Setup: 3 node Proxmox cluster with x2 500 GB SSDs per system at the moment. Currently using external NFS storage to allow for migration and HA, however interested in decreasing dependency on external NAS. Question: Would I be best to use DRBD or ceph to allow for easy migration between...
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    Shared VM Hosting?

    Is your Proxmox host connected directly to the internet? Or do you have a router in between?
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    Can I mount existing filled storage to a VM?

    Hello! Is the proxmox machine the NTFS raid host? Or is the NTFS raid array on a dedicated Windows machine? If it is on a dedicated Windows machine, just mount the array directly to the VM via cifs-utils (if a samba share). I am a proxmox newbie too, however I don't believe that Proxmox...
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    Open vSwitch

    I have never known of an option to specify the percentages in regards to network bandwidth.... In regards to using the GUI vs the terminal config file for OVS, I would recommend using the GUI. Just play around with it assuming this is not production :D Also, if you want one vlan to have 25%...
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    Host Network Not Starting

    I am glad that worked for you! Unfortunately, for me it only puts out another error. Specifically: "ifup: failed to open lockfile /run/network/.ifstate.lock: No such file or directory" Thanks for coming back though and posting what worked!
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    Host Network Not Starting

    As stated in the title, the host network will not start. Upon using IPMI and being on the host machine, I have run the following commands: 1. ifconfig Only results in network "lo" 2. service networking.service restart Starts the network and the host can be pinged at this point, however...
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    iSCSI errors on storage server

    Any update on this front? I have a ZFS on Linux box and I am attempting to set up an iSCSI target for Proxmox. Has anyone found a fix for this and/or does this even affect performance? It definitely clutters the syslog. Does anyone use a different iSCSI target? Thanks!
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    Create internal bridge for faster VM to VM communication

    Thank you for the insight. I didn't even consider the significance of adding a router until you mentioned it. DUH! :) Now to the next problem, when I added the above bridge as shown, the rest of my proxmox network fails badly - as in the vmbr0 stops working and all network activity comes to a...
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    Create internal bridge for faster VM to VM communication

    Hello! I am attempting to setup a virtual network for a subset of VMs to communicate on, i.e. completely virtual LAN. I have tried the following: 1. edited /etc/network/interfaces to ... auto vmbr200 iface vmbr200 inet static address 10.10.10.0...
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    Nesting Virtualization Status

    I was never able to get Xen to properly boot up in a nested environment, however I was able to get Proxmox to boot up with the above commands. e100: I verified kvm was working via the following command: "lsmod | grep kvm" & it returned kvm_intel... was this not correct?
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    Mastering Proxmox - a book about Proxmox VE is finally available

    symmcom, My book from Amazon arrives later today (or so it is scheduled too) and I am very excited! Thank you for writing said book.
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    Nesting Virtualization Status

    Yep! :) I am attempting to get Xen installed. I have recently updated to the 3.x kernel, and played a little, but still no luck. Can I ask, what did you do to get it working in the 2.6.x kernel? Thanks!
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    Nesting Virtualization Status

    I am attempting to install a Citrix host inside of my Proxmox host to just learn more about it. Here is a list of all I have completed in my pursuit. modify VM.conf to: args: -enable-nesting modify "/etc/modprob.d/kvm-intel.conf" to include "options kvm-intel nested=1" changed VM cpu via...
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    [SOLVED] Add additional virtual disk to VM

    Wow! That was an easy fix. I didn't even consider the different between rebooting the machine vs doing a hard off / on. I figured it was something easy I was missing. Thank you!

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