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Downsizing a production database sounds risky. Learn which metrics prove RDS is oversized, how Multi-AZ makes the change safe, and the 7-day restart gotcha.
Old objects sit in S3 Standard forever unless you move them. Learn the storage classes honestly, how to write a lifecycle rule, and the multipart-upload trap.
AWS bills unattached Elastic IPs — and since 2024, every public IPv4 address. Here's why the charge appears, how to find idle IPs, and how to release them safely.
Your NAT Gateway bill is two separate charges — a flat hourly fee and a per-GB data fee. Here's how to find the one that's hurting you and cut it.