Check space used in azure storage accounts in my subscription

Question

How can I check how much space I used in each of my azure storage accounts in my subscription resource group wise.

I am not able to find a way to check space used in azure storage account through PowerShell, CLI, portal...

Answer 1

In 2024 it is now possible to see the capacity used (and also the number of transactions, latency and other metrics) of an Azure Storage account by using Monitor within the Azure Portal.

1. Open Azure Monitor. It can be found by searching:

2. In the left menu, open the Insights group, then Storage Accounts.
3. You can now see the throughput metrics of your accounts:

You can also see the capacity used by changing tabs:

Answer 2

The Portal Storage Browser will show you the total data stored.

1. Login in to Azure.

2. Navigate to the Storage Account.

3. Click on Storage Browser on the left.

Answer 3

I have created python script to calculate used storage in all subscriptions. Well, it''s not quickly:

• need to request all subscriptions via provided permissions
• request Azure resource Graph to receive list /subscription/resourcegroup/storageaccount
• generate list of subscription, where storageaccount exists
• request Azure Monitor for every /subscription/resourcegroup/storageaccount to receive UsedCapacity

    from azure.mgmt.monitor import MonitorManagementClient
    from azure.mgmt.subscription import SubscriptionClient
    from msrestazure.azure_active_directory import ServicePrincipalCredentials
    from azure.mgmt.resourcegraph import ResourceGraphClient
    from azure.mgmt.resourcegraph.models import QueryRequest
    
    credentials = ServicePrincipalCredentials(client_id, secret, tenant=tenant_id)
    
    sub_object = SubscriptionClient(credentials)
    rgraph_object = ResourceGraphClient(credentials)
    storageaccount_pattern = "resources | where type == 'microsoft.storage/storageaccounts' | project id"
    
    subs = [sub.as_dict() for sub in sub_object.subscriptions.list()]
    
    subs_list = []
    for sub in subs:
        subs_list.append(sub.get('subscription_id'))
    
    request_storageaccount = QueryRequest(subscriptions=subs_list, query=storageaccount_pattern)
    rgraph_storageaccount = rgraph_object.resources(request_storageaccount).as_dict()
    
    resource_ids = []
    
    for element in rgraph_storageaccount['data']:
        resource_ids.append(element['id'])
    
    count_used_storage = 0
    for resource_id in resource_ids:
        sub = (resource_id.split('/'))[2]
        monitor_object = MonitorManagementClient(credentials, subscription_id=sub)
        metrics_data = monitor_object.metrics.list(resource_id)
    
        for item in metrics_data.value:
            for timeserie in item.timeseries:
                for data in timeserie.data:
                    try:
                        count_used_storage = count_used_storage + data.average
                    except:
                        pass
    
    print(count_used_storage)

For ~400 subscriptions, ~1100 storageaccounts script works about 600 secs.

For one subscription it's much faster :)

Answer 4

You can go to: Home > {storage account} > {container} > properties Under properties you will have calculate size Container Size

Answer 5

using Cloud Shell is one of the best solution so far:

• Add a powershell file in Cloud Shell (check out the code below)
• Run the PS command with Storage-Account and Resource-Group names

Code

param($resourceGroup, $storageAccountName)


# usage
# Get-StorageAccountSize -resourceGroup <resource-group> -storageAccountName <storage-account-name>


# Connect to Azure
Connect-AzureRmAccount


# Get a reference to the storage account and the context
$storageAccount = Get-AzureRmStorageAccount `
-ResourceGroupName $resourceGroup `
-Name $storageAccountName
$ctx = $storageAccount.Context

# Get All Blob Containers
$AllContainers = Get-AzureStorageContainer -Context $ctx
$AllContainersCount = $AllContainers.Count
Write-Host "We found '$($AllContainersCount)' containers. Processing size for each one"

# Zero counters
$TotalLength = 0
$TotalContainers = 0

# Loop to go over each container and calculate size
Foreach ($Container in $AllContainers){
$TotalContainers = $TotalContainers + 1
Write-Host "Processing Container '$($TotalContainers)'/'$($AllContainersCount)'"
$listOfBLobs = Get-AzureStorageBlob -Container $Container.Name -Context $ctx

# zero out our total
$length = 0

# this loops through the list of blobs and retrieves the length for each blob and adds it to the total
$listOfBlobs | ForEach-Object {$length = $length + $_.Length}
$TotalLength = $TotalLength + $length
}
# end container loop

#Convert length to GB
$TotalLengthGB = $TotalLength /1024 /1024 /1024

# Result output
Write-Host "Total Length = " $TotallengthGB "GB"

https://gist.github.com/iamsunny/8718fb29146363af11da95e5eb82f245

Answer 6

I found this article so relevant after a lots of search:

https://techcommunity.microsoft.com/t5/azure-paas-blog/calculate-the-size-capacity-of-storage-account-and-it-services/ba-p/1064046

Use Azure Monitor to check the capacity of the storage accounts. Steps:

• Navigate to Azure Monitor
• Click on Storage Accounts
• Click on the Capacity. You can see all the accounts and used capacity side-by-side here.

Answer 7

This will give storage account capacity in each resource group in all subscriptions

$sub = Get-AzSubscription | select Name
$sub | foreach { 
Set-AzContext -Subscription $_.Name
$currentSub = $_.Name
$RGs = Get-AzResourceGroup | select ResourceGroupName
$RGs | foreach {
$CurrentRG = $_.ResourceGroupName
$StorageAccounts = Get-AzStorageAccount -ResourceGroupName $CurrentRG | select StorageAccountName
$StorageAccounts | foreach {
$StorageAccount = $_.StorageAccountName
$CurrentSAID = (Get-AzStorageAccount -ResourceGroupName $CurrentRG -AccountName $StorageAccount).Id
$usedCapacity = (Get-AzMetric -ResourceId $CurrentSAID -MetricName "UsedCapacity").Data
$usedCapacityInMB = $usedCapacity.Average / 1024 / 1024
"$StorageAccount,$usedCapacityInMB,$CurrentRG,$currentSub" >> ".\storageAccountsUsedCapacity.csv"
}
}
}

Output

Answer 8

To get this in Powershell, it is kind of a pain, but might be useful for other folks (such as cleaning out old backups): Here's what I came up with, and it should work with AzureRM module 6.13.0 at least:

$azstorcontext = New-AzureStorageContext -StorageAccountName storageaccounthere -StorageAccountKey storageaccountkeyhere
$sizesOverall = @()
$containers = Get-AzureStorageContainer -Context $azstorcontext
foreach ($container in $containers)
{
    Write-Output $container.Name
    $contblobs = get-azurestorageblob -container $container.name -Context $azstorcontext
    Write-Output "  Blobs: $($contblobs.count)"
    $containersize = ($contblobs | Measure-Object -Sum Length).Sum
    Write-Output "    Container Size: $containersize) (bytes)"
    $sizesOverall    
}

Answer 9

Here is a .net core script I use to list storage account usage using the average metrics value of the last hour.

using System;
using System.Collections.Generic;
using System.IO;
using System.Threading;
using Microsoft.Azure.Management.CosmosDB.Fluent.Models;
using Microsoft.Azure.Management.Fluent;
using Microsoft.Azure.Management.Monitor;
using Microsoft.Azure.Management.Monitor.Models;
using Microsoft.Rest.Azure.Authentication;

namespace storagelist
{
    class Program
    {
        static async System.Threading.Tasks.Task Main(string[] args)
        {
            // to generate my.azureauth file run the follow command:
            // az ad sp create-for-rbac --sdk-auth > my.azureauth
            var azure = Azure.Authenticate("my.azureauth").WithDefaultSubscription();

            var accounts = azure.StorageAccounts.List();
            // can get values from my.azureauth
            var tenantId = "";
            var clientId = "";
            var clientSecret = "";
            var serviceCreds = await ApplicationTokenProvider.LoginSilentAsync(tenantId, clientId, clientSecret);
            MonitorManagementClient readOnlyClient = new MonitorManagementClient(serviceCreds);

            var oneHour = System.TimeSpan.FromHours(1);
            var startDate = DateTime.Now.AddHours(-oneHour.Hours).ToUniversalTime().ToString("o");
            string endDate = DateTime.Now.ToUniversalTime().ToString("o");
            string timeSpan = startDate + "/" + endDate;

            List<string> fileContents = new List<string>();

            foreach (var storage in accounts)
            {
                var response = await readOnlyClient.Metrics.ListAsync(
                resourceUri: storage.Id,
                timespan: timeSpan,
                interval: oneHour,
                metricnames: "UsedCapacity",

                aggregation: "Average",
                resultType: ResultType.Data,
                cancellationToken: CancellationToken.None);

                foreach (var metric in response.Value)
                {
                    foreach (var series in metric.Timeseries)
                    {
                        foreach (var point in series.Data)
                        {
                            if (point.Average.HasValue)
                            {
                                fileContents.Add($"{storage.Id}, {point.Average.Value}");
                                break;
                            }
                        }
                        break;
                    }
                    break;
                }
            }

            await File.WriteAllLinesAsync("./storage.csv", fileContents);
        }
    }
}

Answer 10

Azure Storage Explorer has a 'Directory Statistics' button.

Navigate to a folder

Click the button

The total is shown in the activities panel

Answer 11

Azure Storage size consist of all of 4 services (Blob, Queue,File, Table) altogether. Based on my knowledge, there are no ways to calculate the total size of all services for now.

However, you could get blob space used on Portal by using Azure metrics. Please select Monitor-->Metrics

More information about monitor a storage account in the Azure portal please refer to this link.

Also, you could use PowerShell to get your blob usage. There is a good script you could use.