Azure AI Metrics Advisor
An Azure artificial intelligence analytics service that proactively monitors metrics and diagnoses issues.
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Is there a Powershell Command that will collect data by filtering disk metrics by "LUN" on Azure Performance Metrics?
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Jessah Mae Alogon
21
Reputation points
Is it possible to collect the performance metric data of VM with attached disk (LUN) using Powershell command?
I only tried the command Get-AzMetric and I was able to collect the performance metric data of a particular VM server. But that is only on the VM itself. Can this also be done (via Powershell script) on the attached LUN which needs to filter out when you are in the Azure Portal. Honestly, I haven't find any CLI command yet. That's why I'm asking if there is someone who was able to do it.
{count} votes
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tbgangav-MSFT 10,416 Reputation points2022-11-26T08:48:36.183+00:00 Hi @Jessah Mae Alogon ,
You would have to create metric dimension filter (something like New-AzMetricFilter -Dimension LUN -Operator eq -Value 1) and use it in MetricFilter parameter of Get-AzMetric cmdlet as explained here in example 4. Also, if you are looking for a way to get the metric data from multiple resources then you may use Get-AzResource cmdlet as explained here.
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Alogon, Jessah Mae 1 Reputation point2022-11-29T00:22:14.803+00:00 @tbgangav-MSFT thank you so much for the suggestion. I will try to that metric dimension filter and test it on my resources.
Really appreciate your help. -
Alogon, Jessah Mae 1 Reputation point
2022-11-29T07:22:07.433+00:00 Hi @tbgangav-MSFT i tried your suggestion on creating a dimension filter, but it seems that the Metric Names for Data Disk is not supported when using the powershell cli commands. Please see the pictures of error I have encountered.
Here is also the command I used:
$dimFilter = @(New-AzMetricFilter -Dimension LUN -Operator eq -Value "0","1","2","3").ToString()
$VMname = Get-AzVM -ResourceGroupName $RG -Name $VM
$DataDisk = Get-AzMetric -ResourceId $VMname.Id -TimeGrain 00:01:00 -StartTime $st -EndTime $et -MetricName "Data Disk Read Bytes/Sec" -MetricFilter $dimFilter -AggregationType $Ag -DetailedOutput
$DataDisk.Data
Also please see the screenshot of the Metrics Names that I want to get.
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