How to check cost of unused disk in Azure

Question

Hi All,

I have a list of Unattached disks which are in different subscriptions and resource groups. So is there a way to get all these disks cost usage when they are unattached now?

I checked in the Azure advisory recommendation which is not showing the exact amount.

Thanks in advance.

Answer

you can write a script similar to below to calculate it

Connect-AzAccount

$subscriptions = Get-AzSubscription

foreach ($subscription in $subscriptions) {

    Set-AzContext -SubscriptionId $subscription.Id

    $unattachedDisks = Get-AzDisk | Where-Object { -not $_.ManagedBy }

    foreach ($disk in $unattachedDisks) {
    
        $costPerGB = 0.05 # you need to find an average cost of disk per GB from Azure Pricing Calculator
        $cost = $disk.DiskSizeGB * $costPerGB

        Write-Output "Resource Group: $($disk.ResourceGroupName)"
        Write-Output "Disk Name: $($disk.Name)"
        Write-Output "Disk Size (GB): $($disk.DiskSizeGB)"
        Write-Output "Estimated Monthly Cost: `$$cost"
        Write-Output "--------------------------------------"
    }
}

Disconnect-AzAccount

Answer

Hello vadiraj desai,

Thank you for posting your query here!

You may refer to Azure Pricing Calculator to have a rough estimation: https://azure.microsoft.com/en-au/pricing/calculator/

However, based on your scenario I would recommend contacting Azure Billing and Subscription team. They are best equipped to offer comprehensive insights and guidance on which Azure service consumes more resources and when this consumption occurs. You can expect to receive detailed information and one-on-one support when you engage with them. https://azure.microsoft.com/en-us/support/options/
It's a free support and the best option for you.

To find and delete unattached disk in Azure, we can refer: https://video2.skills-academy.com/en-us/azure/virtual-machines/disks-find-unattached-portal

Kindly let us know if you have any further queries. I’m happy to assist you further.

Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

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How to check cost of unused disk in Azure

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