@Nick Diaz You can use Azure Storage Explorer to see the individual file shares quota.
There is now Quota management API : https://azure.microsoft.com/en-us/updates/azure-quota-rest-api-to-manage-service-limits-quota-are-now-available-in-preview/
This article is a complete list of all platform (that is, automatically collected) metrics currently available with Azure Monitor's consolidated metric pipeline.
There is a similar threads discussion in Q&A and MSDN Forum which provide more information and it solution on your scenario.
Additional information: we suggested the use of Azure Monitoring that will allow you to create alerts for an specific resource type in the storage. As an important note, If the file share is a standard file share, the File Share dimension will not list the file share(s) because per-share metrics are not available for standard file shares. Alerts for standard file shares are based on all file shares in the storage account.
Note: If you are looking for specific feature in alert on Azure Files Share, I would recommended to leave your feedback/UserVoice here. All the feedback you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure.
Hope this helps!
Kindly let us know if the above helps or you need further assistance on this issue.
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