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    Topics

    • A

      XOA vs XO vs Backup feature

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      @kagbasi-ngc Hi, thanks for your thoughts. I get on well with Linux myself - I’m using XO from source following the documentation, and actually, Ronivay’s script, as you mentioned, makes it all even handier. Still, I can’t help but think - your average home user, a total amateur, is just going to land on the XCP-ng host homepage and click "Deploy XOA". And then they’ve no backup, outside of the trial period. But sure, if XOA is aimed squarely at business and enterprise users with paid licences, fair enough that makes perfect sense. I just feel like backup isn’t really a purely business or enterprise feature, unlike, say, proxy instances or hyper-converged storage. It's something even home users would genuinely benefit from. But as it is mentioned above, that’s just how it’s set up - and like you said yourself, everyone’s got the chance to learn something new. And sure, in the age of AI chatbots, there’s really no excuse not to manage it
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      Tags not available in the pick list

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      So it looks like it was a browser cache problem, solved by deleting it.
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      RAID Status on the Advanced tab of the host

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      olivierlambertO
      The plugin was initially created to check RAID created during install, not custom RAIDs created manually. But that could be an improvement to the plugin @stormi I leave you the honor to add this somewhere
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      Restore from backup

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      olivierlambertO
      Ping @thomas-dkmt
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      "Block migraton" option on the VM´s Advanced tab

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      Looks to be correct on the current release of XO from Source and reads as "Prevent Migration"
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      Virtual machine autostart order and delays on a single XCP-ng host

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      olivierlambertO
      Hi, You can use delay or if you want specific order, you need to use vApp, that you can configure with the CLI. See https://docs.xcp-ng.org/appendix/cli_reference/#appliance-commands
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      XCP-ng host - Power management

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      @tjkreidl We don't need performance, but we do need to test how XCP-ng pools, networking, migration, live migration, backup, import from VMware and so on work. It's just a playground where we can have relatively many XCP-ng hosts, but it's not about performance, it's about efficiency and low requirements, because it's just a playground where we learn, validate how things work, and prepare the process for the final migration from VMware to XCP-ng. We originally had two R630s ready for this, then 4, but that would have been unnecessary, given the power consumption, to have physical hypervisors, so in the end we decided to virtualize it all. Well, on ESXi it's because XCP-ng works seamlessly there in nested virtualization.
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      Managing disks and storage in the XO GUI

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      olivierlambertO
      This requires some extra plugins to be able to do it, and as it's rather "advanced"/not usual for the main XCP-ng use cases (which is connecting to iSCSI/NFS/shared storages, it's not a priority. Which doesn't mean it's not a good idea or interesting, but there's some work to do it and then to maintain it.
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      Cannot import VHD disks while VMDK can

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      qemu-img convert disk_image_fixed.vhd -O vpc -o subformat=dynamic disk_image_dynamic.vhd
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      Automatic startup and shutdows VMs at the specified time

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      julien-fJ
      @abudef Indeed, the delay is in milliseconds.
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      Attach PCIs - Not enough permissions

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      Great, it's working fine now
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      The writer IncrementalRemoteWriter has failed the step writer.beforeBackup()

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      DanpD
      Usually this error is caused by the merge process still running in the background from a previous backup job.
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      XO - enable PCI devices for pass-through - should it work already or not yet?

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      That's exactly it, thank you [image: 1717165046697-1533660b-c0eb-45b1-b81c-ae50d03a4f36-image.png]
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      Guest tools in nested XCP-ng

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      olivierlambertO
      Hi, It's not possible.
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      "Hardware-assisted virtualization is not enabled on this host" even though platform:exp-nested-hvm=true is set

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      olivierlambertO
      There is some diff, but not that much between HyperV, ESXi and Xen. However, it's big enough to require a lot of effort to get nested working correctly, one small mistake and your VM is dead.
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      Virtualized XCP-ng reboots when trying to install Debian from an ISO from the local ISO store

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      @lawrencesystems I think this is quite common when you need to test certain scenarios with multiple hypervisors (backup, migrations, etc.). You only need a couple of HVs with a few tiny running VMs. We have done this setup with nested esxi many times for testing purposes. And since e.g. Ubuntu and Windows work this way, the problem is probably specific to Debian (and maybe others?).
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      Cannot import ISO file

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      Solved by 583c728
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      Importing vm from VMware ESXi fails

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      Solved by 583c728
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      Problem with importing large VMDK disks

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      To conclude this: @florent and I discussed the issue in a private conversation. I provided the vmdk file that was causing the problem. It turned out that the problem was caused by the vmdk thin file from VMware Workstation Pro, which has a slightly different structure than the vmdk files on ESXi hypervisors. Currently XO imports these files fine and the problem can be considered solved. Thank you very much @florent for your cooperation and help.
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      XCP-ng on a laptop - turning off the monitor

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      @abudef I ran into the same thing on a dell latitude 5411, but I eventually found a workaround. In the BIOS under System Configuration there was an option called Unobtrusive Mode, and when enabled, a specific key combination will turn off the display and speakers, independent of the OS. The same key combination will then turn them back on when needed. While an automatic feature would be preferable, the manual option meets my needs since it would be rare to need to use the laptop screen. The one downside for me is that if power is lost long enough that the battery drains, the screen will need manual intervention after power is restored - the BIOS will turn the machine back on when it receives power, but won't put the screen back in its previous state. I put a sticker on the laptop with the key combination so I will remember it when needed.