What is the time duration of azure file share tier change

Question

What is the time duration of file share tier change Transaction optimized>hot>cool and vice-versa. As we have around data in TB's in file share which needs to be moved from transaction optimized to cool and after the period we will switch back to transaction optimized

Answer 1

@Rohit Paswan Welcome to Microsoft Q&A Forum, Thank you for posting your query here!

The time duration for changing the tier of an Azure Files share from Transaction optimized to Hot or Cool, or vice versa, depends on the size of the share and the amount of data that needs to be moved.

When you change the tier of an Azure Files share, the data in the share is moved to a different storage tier. This process is known as tiering. The time it takes to complete the tiering process depends on the amount of data in the share, Network and Bandwidth and the performance of the storage account.

Although you can change a standard file share between the three standard file share tiers, the best practice to optimize costs after the initial migration is to pick the most cost optimal tier to be in, and stay there unless your access pattern changes. This is because changing the tier of a standard file share results in additional costs as follows:

Transactions: When you move a share from a hotter tier to a cooler tier, you will incur the cooler tier's write transaction charge for each file in the share. Moving a file share from a cooler tier to a hotter tier will incur the cool tier's read transaction charge for each file in the share.

Data retrieval: If you are moving from the cool tier to hot or transaction optimized, you will incur a data retrieval charge based on the size of data moved. Only the cool tier has a data retrieval charge.

**You can change the tier of the share at any time after it has been deployed. Premium file shares can't be directly converted to any standard tier.
**
You can move file shares between tiers within GPv2 storage account types (transaction optimized, hot, and cool). Share moves between tiers incur transactions: moving from a hotter tier to a cooler tier will incur the cooler tier's write transaction charge for each file in the share, while a move from a cooler tier to a hotter tier will incur the cool tier's read transaction charge for each file the share.

Please let us know if you have any further queries. I’m happy to assist you further.     

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