Update storage tier movement info

Author: arunmk-ms

articles/healthcare-apis/dicom/dicom-data-lake.md

@@ -57,6 +57,10 @@ The DICOM service is granted access to the data like any other service or applic
 
 You can manage costs for imaging data stored by the DICOM service by using Azure Storage access tiers for the data lake storage account. The DICOM service only supports online access tiers (either hot, cool, or cold), and can retrieve imaging data in those tiers immediately. The hot tier is the best choice for data that is in active use. The cool or cold tier is ideal for data that is accessed less frequently but still must be available for reading and writing.
 
+Data lake storage users can manage their storage costs efficiently by moving the files between Hot, Cool and Cold tiers based on their usage patterns. It's commonly observed that files are always stored in Hot tier and a very less percentage of them are accessed later. This can lead to increased storage costs since the Hot tier is more expensive. To optimize costs, you can add a lifecycle policy that automatically moves files to the Cool or Cold tier after a certain number of days. If a file is accessed after being moved, the policy can bring it back to the Hot tier. To implement this policy, you need to enable access tracking, which allows the system to monitor and respond to file access patterns.
+
+:::image type="content" source="media/data-lake-storage-tier.png" alt-text="Efficiently manage data lake storage using Life cycle management policies." lightbox="media/data-lake-storage-tier.png":::
+
 To learn more about access tiers, including cost tradeoffs and best practices, see [Azure Storage access tiers](/azure/storage/blobs/access-tiers-overview)
 
 ## Health check