AWS S3 to Azure transfer cost

Question

Hello, we are planning to transfer large amount (12TB) of data from Aws s3 to Azure Blob storage. There are close to 60million objects to deal with and we are planning to use AzCopy for the same. Before proceeding we want to estimate the transfer cost. Are there any 'write cost' to azure blobs? We are aware of egress cost from aws s3, but to calculate complete end to end cost, we need to understand are there any write operation cost during the transfer

Answer 1

Hi,

Yes, there are write transaction costs in addition to the data storage fee. Depending on your storage account and what features you are using, there are several other charges that may be applicable as well. One example, if your account is GRS, RA-GRS, GZRS, or RA-GZRS you would have data transfer charges for replicating to the paired Azure region.

Please article below for details of blob storage pricing:

https://azure.microsoft.com/en-us/pricing/details/storage/blobs/

What I would recommend is to test by copying a small (say, several hundred GiB) representative subset, waiting at least 72 hours, and then going to Cost Management - Cost analysis (preview) in Azure portal to examine costs for the period involved.

Please click Accept Answer if the above was helpful.

Thanks.

-TP

Answer 2

Hi,

Do you plan to use Hot, Cold or Archive Blob Storage for this data as the plans and cost are different for this type of storage in Azure. Also check the Microsoft reservation discount via the Enterprise agreement if you have.

All the write operations are charged and detailed pricing for this is over here - https://azure.microsoft.com/en-gb/pricing/details/storage/blobs/

Also to note - Additional cross-region data transfer network changes may apply based on source/destination of each storage access, so for any DC to DC data transfer you will have to calculate the bandwidth cost - https://azure.microsoft.com/en-gb/pricing/details/bandwidth/#pricing

If you have more queries on this, I will suggest you to get in touch with Microsoft regional manager for detailed information and best practices.

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