@Jaanvi Dhariwal Adding more information to the above response!
You can copy blobs, directories, and containers between storage accounts by using the AzCopy v10 command-line utility.
To see examples for other types of tasks such as uploading files, downloading blobs, and synchronizing with Blob storage, see the links presented in the Next Steps section of this article.
AzCopy uses server-to-server APIs, so data is copied directly between storage servers. These copy operations don't use the network bandwidth of your computer.
Copy blobs between Azure storage accounts by using AzCopy
Transfer data with AzCopy and file storage
AzCopy uses server to server APIs when copying data between storage accounts and should not use the local bandwidth of your computer. It is currently the fastest way to migrate data between accounts. To increase performance, you can try decreasing the logging level, separating the copy into multiple operations, and turn off length checking. See Optimize for large numbers of small files for more information.
Learn how to use the Azure CLI, AzCopy, and .NET code to copy blobs between storage accounts. Copy blobs between Azure Storage accounts from the command line or by using code
This article provides an overview of some of the common Azure data transfer solutions. The article also links out to recommended options depending on the network bandwidth in your environment and the size of the data you intend to transfer. Choose an Azure solution for data transfer
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