What AWS tools help with cost visibility (Cost Explorer, Budgets, CUR)?
AWS · Advanced level
Answer
Cost visibility tools include Cost Explorer, Budgets, Cost and Usage Report, Cost Anomaly Detection, Compute Optimizer, Trusted Advisor, and billing dashboards. CUR plus tags is the most powerful for deep allocation.
Technical explanation
CUR with resource IDs and tags is the most flexible base for chargeback, showback, and FinOps analytics.
Cost analysis should be based on tagged usage, CUR/Cost Explorer data, service-level owners, and usage-type drivers rather than account-level totals only.
Every cost reduction should be checked against reliability, performance, security, and operational risk.
Use budgets and anomaly detection for early signal, then use rightsizing, lifecycle, commitments, scheduling, and architecture fixes for remediation.
Hands-on example
1. Use Cost Explorer or CUR/Athena to identify the top cost driver by account, service, tag, Region, usage type, and daily delta.
2. Validate the operational cause with service metrics such as utilization, logs volume, NAT bytes, snapshot growth, or data transfer.
3. Apply a targeted fix - rightsizing, lifecycle, retention, endpoint, schedule, or commitment - with a rollback plan.
4. Track savings, performance, and reliability for at least one billing cycle.
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