Discussion
Arrange the steps of designing a storage tier in order.
1. set lifecycle rules for ageing data
2. characterise the access pattern and retention requirement
3. monitor actual cost against the expectation
4. choose the storage type and class
Answer: D
The access pattern drives everything else, and monitoring closes the loop where the pattern turns out to differ from what was assumed. Choosing a class before understanding access is the usual error. Monitoring closes the loop at the end.
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