@MS Techie Thanks for posting your query on Microsoft Q&A.
There are few quick ways you can get the used capacity data for your Storage account:
#1. Login to Azure Portal -> Navigate to Storage Account -> Insights under Monitoring Tab ->
You can use 'Open in Metrics Explorer' button -> select the 'Last 30 days' from dropdown on the right and export the data to excel.
#2. Login to Azure Portal -> Azure Monitor -> Storage accounts under Insights -> Select the subscription and storage account and time range as Last 30 days.
#3. Use Azure Browser or Azure Storage Explorer to get further insights at Container or Blob level.
#4. You can also use Azure Storage blob inventory to understand the total data size.
The advanced monitoring capabilities that use your ingested data (see Insights and core solutions) are available at no additional cost.
We are only using 'Insights' in 1 & 2. Insights are meant to be a starting point for monitoring a service or set of services. Some insights may also automatically pull additional data that's not captured or stored in Azure Monitor. For more information on monitoring insights, see Insights Overview.
- Calculate the size/capacity of storage account and it services (Blob/Table)
- Calculate blob count and total size per container using Azure Storage inventory
- List used space for blobs, files, tables, queues using PowerShell
- Azure Monitor Pricing
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