Azure VM not generating alerts for DISK . Not getting data in Log analytics

coolqwerty 21 Reputation points
2022-08-20T08:47:52.41+00:00

Azure VM not generating alerts for DISK . Not getting data in Log analytics

Checked - Extension health - It is healthy
Checked - MMA inside the VM with no error .Running fine.

But still i don't see heartbeat recieve in log analytics.

I see test cloud connection failure but same failure i see on other VM but there it is reporting the heartbeat and alerts fine without any issue

Please help

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3 answers

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  1. Manu Philip 16,991 Reputation points MVP
    2022-08-20T11:26:02.977+00:00

    I suggest you to try the following query and if it works well, create a custom alert rule with the query

    Go to Log Analytics Workspace > Logs > Run the following query
    The following query shows the azure virtual machine with less than 100GB disk

    InsightsMetrics  
    | where Name == "FreeSpacePercentage"  
    | summarize arg_max(TimeGenerated, *) by Tags  
    // arg_max over TimeGenerated returns the latest record  
    | project TimeGenerated, Computer, Val, Tags  
    | where Val < 100  
    

    ----------

    --please don't forget to upvote and Accept as answer if the reply is helpful--


  2. David Broggy 5,686 Reputation points MVP
    2022-08-21T04:04:05.727+00:00

    Hi Coolprash,

    Do you have any logs showing up in the disk's Activity Log? If not, then you shouldn't expect to see anything in log analytics.

    Maybe take a step back and please verify this is how you configured logging?

    Azure VM > [your disk] > Activity Log > Export Activity Logs > + Add Diagnostic Setting

    233155-image.png


  3. Maxim Sergeev 6,566 Reputation points Microsoft Employee
    2022-08-22T23:44:47.793+00:00

    Hi there,

    Are you sure that you MMA is configured correctly and it's reporting to a right Log Analytics workspace? Can you compare workspace ids on both Virtual Machines?
    You can check it in Control Panel

    233804-image.png

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