A lifecycle management rule automatically moves Azure Storage blobs between hot, cool, and archive tiers—or deletes them—when defined conditions are met. It turns changing access patterns into predictable storage-cost decisions. section 9.5.1
A rule combines:
- Conditions such as days since a blob was last modified. section 9.5.1
- Actions such as moving data to cool after 30 days, archive after 90 days, or deleting it after 365 days. section 9.5.1
Aging storage policy
A policy can keep recently changed blobs hot, transition them to cool after 30 days, archive them after 90 days, and delete them after a year. JSON makes the rule explicit and repeatable.
Figure 9.12 The tradeoff: the access costs go up for cool and archive tiers, whereas the storage costs go up for cold and hot tiers.
Compare storage-cost savings with the higher access costs and latency associated with cooler tiers. section 9.5.1
