MABS backup - Linux VM deployed on Azure Stack HCI 23h2 (host-level approach)

Aishwarya Upadhye 66 Reputation points
2024-02-21T06:24:43.9266667+00:00
  • Hi team, Description: I am trying to backup the Ubuntu VM which is deployed on 23H2 HCI cluster. For that, i am following host-level approach .i.e Adding Cluster to the MABS and backing up the available Linux VM through the Cluster. Problem: I am unable to add the DPM agents on the HCI cluster and Server. Please follow the screenshot for the same. I tried to add the agent manually on the server - https://video2.skills-academy.com/en-us/system-center/dpm/deploy-dpm-protection-agent?view=sc-dpm-2022. Tried to copy-paste the .exe of the Agent and execute it. I got the following error on the server. Questions : 1 -- Is backup and restore for Linux VM (On 23h2 hci cluster) supported? If yes, Please provide the workaround for the same or please refer to the document where we have the process to backup the Linux VM via MABS. Is the Windows Client OS (10\11) system state and bare metal supported? As the Windows client does not have Windows backup server to support replica consistency on MABS.
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  1. Amardeep Saini 1,175 Reputation points Microsoft Employee
    2024-03-18T10:32:39.5833333+00:00

    Aishwarya Upadhye - Thank you for the confirmation. If the below mentioned suggestions were helpful, click “Accept Answer” and Up-Vote. Feel free to reach out to us if you've additional questions in this regard.

    You are getting this error message due to 23H2 is having WDAC enabled, this is blocking the installation. To disable it you need to run below mentioned command on all HCI nodes.

    Get-ClusterNode | % {$session = New-PsSession -ComputerName $_ ; Invoke-Command -Session $session -ScriptBlock {$env:COMPUTERNAME ; Disable-NetFirewallRule AzsHci-ImdsAttestation-Block-TCP-In }}

    1 person found this answer helpful.
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  2. Amardeep Saini 1,175 Reputation points Microsoft Employee
    2024-02-27T11:45:38.04+00:00

    Aishwarya Upadhye - Thank you for contacting us on Microsoft Q&A platform. Happy to help! Backup of Linux VM via MABS is supported. Currently looking into the issue it seems that you are not able to install DPM agent on HCI nodes due to permission issue. Error 0x80070659 - This installation is forbidden by system policy. Contact your system administrator. You’re most likely to encounter this error if a Windows Group Policy or User Account Control (UAC) is blocking the administrator access to the current installation. I think you should check the domain policy or local policy on HCI node and see if Turn off Windows Installer is enabled. If that is the case you need to disable it and then try install the DPM agent. Prohibit non-administrators from applying vendor signed updates

  3. EmlyLorienz 0 Reputation points
    2024-03-12T21:33:50.3366667+00:00
    1. Check compatibility: Verify official Microsoft documentation for supported versions: https://video2.skills-academy.com/en-us/azure/backup/backup-mabs-protection-matrix
    2. Consider alternatives: If 23H2 isn't supported, explore options like Azure VM Backup or third-party solutions.
    3. Contact Microsoft Support: For specific guidance and potential workarounds related to 23H2, directly contact Microsoft support.
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  4. Aishwarya Upadhye 66 Reputation points
    2024-03-18T08:26:21.39+00:00

    Disabled the WDAC policy from all HCI nodes and the nodes where successfully added to the MABS

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