STORAGE
EBS vs S3: Picking the Right Storage Without Guessing
Block storage vs object storage isn't a vibe-based decision. Here's the actual decision tree I use in production — latency, durability, and cost, side by side.
6 min read↗
STORAGE
S3 Lifecycle Policies That Actually Save Money
Standard → IA → Glacier transitions, the traps in transition timing, and a real before/after bill from a production bucket.
7 min read↗
EVENT-DRIVEN
S3 Event Notifications: SNS, SQS, or Lambda?
Why I chose SNS → Lambda for an upload pipeline instead of direct triggers, and where each option breaks down under load.
8 min read↗
SECURITY
AWS IAM Basics Nobody Explains Properly
Users, roles, policies, and the dual-check model — explained the way I wish someone had explained it to me on day one.
9 min read↗
COMPUTE
EC2 Auto Scaling: What Actually Triggers a Scale-Out
CloudWatch alarms, cooldown periods, and a load test that scaled 2→4 instances in real time, with the metrics to prove it.
7 min read↗