[[Azure Blob Storage]] offers several access tiers to help manage costs based on how frequently data is accessed ## Tiers ### Hot Tier For data that is access or modified frequently. The hot tier has the highest storage costs, but the lowest access costs. ### Cool Tier For data that is infrequently access but still requires fast retrieval. Lower storage costs and higher access costs compared to the hot tier. Data should be stored for at least 30 days. ### Cold Tier For data that is rarely access and must be stored for at least 90 days. Lower storage costs and higher access costs compared to the cool tier. ### Archive Tier For data that is almost never access and can tolerate delays in retrieval. Lowest storage costs but has the highest access costs. Data should be stored for at least 180 days. ## Resources [Access tiers for blob data - Azure Storage | Microsoft Learn](https://learn.microsoft.com/en-us/azure/storage/blobs/access-tiers-overview)