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Storage Class Downgrade Leading to Durability or Availability Loss

CCC.ObjStor.TH03

An authorized entity or misconfigured lifecycle policy may transition objects from a high-durability or high-availability storage class to a lower-durability or single-zone class. This degradation manifests only when a subsequent failure occurs (e.g., availability zone outage). Objects may also be transitioned to archival tiers, rendering them effectively inaccessible for extended retrieval periods during incidents.

Related Capabilities

IDTitleDescription
CCC.ObjStor.CP08Lifecycle PoliciesSupports defining policies to automate data management tasks, especially those related to cost management.
CCC.ObjStor.CP12Storage ClassesProvides different storage classes for frequently and infrequently accessed objects.

Related Controls

IDTitleDescription
CCC.ObjStor.CN10Restrict Storage Class Transitions to Approved TiersEnsure that objects cannot be transitioned to storage classes with lower durability or availability guarantees without explicit authorization, preventing degradation of data resilience through misconfigured lifecycle policies or unauthorized actions.