Using Windows Azure Storage Services, It’s possible to create up to 20 Windows Azure Storage Accounts. Each account has a limited capacity of 200 TB. The number of Windows Azure Accounts per Windows Azure Subscription is a soft limit that can be raised by politely asking the Windows Azure Support Team to bump it up.
To raise the number of Windows Azure Storage Accounts for a specific Windows Azure Subscription, you will need to select the Quota or Core Increase Requests as the problem type when you create the Support Ticket.
Once you’ve selected the appropriate Problem Type, you will be presented with a short survey asking you questions about your current limits and what you wish to get. Submit the Support Ticket and the Windows Azure Support Team will promptly get in touch with you.
When you’re designing your Windows Azure Solution, keep in mind that Windows Azure Subscriptions can contain a maximum of 50 Windows Azure Storage Accounts. Therefore, each Windows Azure Subscription can contain 10 PT (Petabyte) of data. (200TB * 50 Windows Azure Storage Accounts = 10,000TB)
Beware, even though you can store an astronomical amount of data in a single Windows Azure Subscription, you should never lose sight of the Storage Account Scalability Targets.
Targets for a Single Storage Account Created After June 7th 2012
- Capacity – Up to 200 TBs
- Transactions – Up to 20,000 entities/messages/blobs per second
- Bandwidth for a Geo Redundant storage account
- Ingress – up to 5 gigabits per second
- Egress – up to 10 gigabits per second
- Bandwidth for a Locally Redundant storage account
- Ingress – up to 10 gigabits per second
- Egress – up to 15 gigabits per second