According to the following Microsoft learn document, Azure Stack HCI 22H2 is the latest version to support MABS. https://learn.microsoft.com/en-us/azure/backup/backup-mabs-protection-matrix#vm-backup does anyone have a timescale on when this will be supported in Azure Stack HCI 23H2? has anyone successfully used azure backup with Azure Stack HCI 23H2?

Thank you for contacting us on Microsoft Q&A platform. 23H2 Azure Stack HCI is supported on MABSv4. I have confirmed from product group and the documentation will be updated for it. While installing DPM agent on 23H2 Azure Stack HCI you might face errors due to 23H2 is having WDAC enabled, we can check this setting in windows defender. 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 }}

Azure Backup Support for Azure Stack HCI 23H3

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Amardeep Saini 1,255 Reputation points Microsoft Employee

2024-03-22T10:27:40.1833333+00:00

Thank you for contacting us on Microsoft Q&A platform. 23H2 Azure Stack HCI is supported on MABSv4. I have confirmed from product group and the documentation will be updated for it.

While installing DPM agent on 23H2 Azure Stack HCI you might face errors due to 23H2 is having WDAC enabled, we can check this setting in windows defender. 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 }}
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Jamie Childs 21 Reputation points

2024-03-22T11:43:58.4166667+00:00

Thank you for confirming. can you confirm this also includes using just the MARS agent for direct backup to recovery services vault?

Amardeep Saini 1,255 Reputation points Microsoft Employee

2024-03-22T12:11:59.5233333+00:00

23H2 Azure Stack HCI is a core device. So, MARS agent can't work on it.

Jamie Childs 21 Reputation points

2024-03-22T12:32:33.39+00:00

Ok thanks. so if I want to backup the Azure Stack HCI hosts I need to use MABS, but for workloads (VM's) I can use either MABS or MARS agent?

Jamie Childs 21 Reputation points

2024-03-22T15:46:18.7866667+00:00

if I only wanted to backup the workloads running on Azure Stack HCI the MARS agent would be an option?

Amardeep Saini 1,255 Reputation points Microsoft Employee

2024-03-25T09:08:07.9033333+00:00

So, you can backup the VMs on Azure Stack HCI hosts using MABS. If you want to backup volume or system state inside the VMs then you can use MARS agent.
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Azure Backup Support for Azure Stack HCI 23H3

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