Microsoft is now making free Azure storage containers available for the purpose of migrating content into Office 365. If you are currently using Azure Turbo mode with your own Azure storage, you may continue to do so without interruption, or you may switch over to the Microsoft storage option.
With regards to migration performance and results, there is no difference between using either option.
The use of the Microsoft Provided Storage option has the following requirements or caveats:
·It requires the use of encryption. If you would like to use the Microsoft Storage option but it is disabled, please refer to the following section for additional steps: Alternate Framework
·The storage containers are only valid for 7 days. At the end of 7 days, all content in this Azure container will be deleted. This does not mean that the entire migration needs to be completed in 7 days, only that the individual packages that are imported (and their corresponding logs) will only remain in their specific storage containers for 7 days.
·You will not have access to the storage account name and key.
If you would like to use this option, simply select the "Enable Azure Turbo Mode" option in the Advanced section of the wizard and then choose "Microsoft Provided Storage".