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Once a lifecycle management policy is in effect for an Azure Storage account, it runs in the background on a daily basis. Here are the key points about when and how the policy changes are applied:
- Initial delay: After creating or updating a policy, it can take up to 24 hours for the changes to go into effect
- Daily execution: Once active, the lifecycle management policy runs once every 24 hours
- Evaluation timing: When the policy runs, it evaluates all blobs in the account against the defined rules
- Action timing: Blobs that meet the criteria will have the specified actions applied during that daily run
- Immediate actions: Some actions, like moving blobs from cool to hot tier when accessed, can happen immediately outside the daily policy run if configured
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