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Why might a lifecycle rule transition to GLACIER fail even if the rule is enabled and correctly configured?

medium📝 Debug Q7 of 15
AWS - Cost Optimization
Why might a lifecycle rule transition to GLACIER fail even if the rule is enabled and correctly configured?
AThe bucket has no replication configured
BThe lifecycle rule uses an invalid storage class name
CThe object is already in GLACIER storage class
DThe object size is less than 128 KB
Step-by-Step Solution
Solution:

  1. Step 1: Understand GLACIER transition requirements

    Objects smaller than 128 KB cannot be transitioned to GLACIER.

  2. Step 2: Check other options

    Replication or existing storage class does not cause failure; invalid names cause rule rejection.

  3. Final Answer:

    The object size is less than 128 KB -> Option D

  4. Quick Check:

    GLACIER requires objects ≥128 KB to transition [OK]
Quick Trick: GLACIER transitions need objects ≥128 KB [OK]
Common Mistakes:
  • Ignoring minimum object size for GLACIER
  • Confusing replication with lifecycle transitions
  • Assuming existing GLACIER class causes failure

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