question

Hi @manishverma-7371,

Thanks for using Microsoft Q&A!!
If I understand you correctly you want to change the tier of any specific file stored as a blob on Azure Data Lake Gen2 storage.

In order to work with blob files stored on Azure Data Lake Storage Gen2, you need to use Azure Blob Storage .NET package as documented over here and changing the tier of any blob stored on a container require you to use SetAccessTier/SetAccessTierAsync method of BlobClient or BlockBlobClient based on your blob type. Please see the below code which you can use to change the tier -

             string containerName = "input";
             string connectionString = $"DefaultEndpointsProtocol=https;AccountName={Account Name};AccountKey={Access Key};EndpointSuffix=core.windows.net";
             BlobServiceClient blobServiceClient = new BlobServiceClient(connectionString);            
             BlobContainerClient containerClient = blobServiceClient.GetBlobContainerClient(containerName);
    
             BlobClient bc = containerClient.GetBlobClient("movies.csv");
             var result = await bc.SetAccessTierAsync(AccessTier.Cool);

Here, you can get the Connection String from Access Keys blade of Storage account.

Additional documentation to know more about setting blobs tier is available at Setting or changing a blob's tier.

Please let me know if you have any questions.

Thanks
Saurabh

Please do not forget to "Accept the answer" wherever the information provided helps you to help others in the community.

Thanks a lot for your replay. we will test and update you