Insights & Resources

The reflex to bolt Amazon Managed Prometheus + Grafana onto every workload is how observability bills quietly double. CloudWatch Application Signals now gives you an auto-discovered service map, SLOs, and traces with near-zero setup; AMP only earns its keep when you are PromQL-native or drowning in high-cardinality metrics, where ingestion (not retention) is the cost driver. The post covers the decision matrix, an ADOT dual-export config, and the three levers that actually cut the AMP bill.

Two 2025 shifts rewrite the IR playbook: GuardDuty Extended Threat Detection now emits a single critical attack-sequence finding instead of a pile of high findings, and AWS Security Incident Response moved to metered pricing (free first 10,000 findings/month, then $0.000676 each) on November 21, 2025. The lesson is to page humans on the top 1% of correlated criticals, isolate instead of terminate, and let auto-triage absorb the rest.

Most KMS guides stop at "enable encryption." The architecture decision that actually bites is the key boundary: split one CMK into 3,200 per-tenant keys and you pay ~$3,200/mo in key storage alone while still sharing a single 10,000 req/s symmetric quota. The post covers the decision matrix, the throttle math, and the encryption-context pattern that gives per-tenant isolation without per-tenant keys.

Tag policies report; only an SCP prevents untagged spend. And ~21% of a typical bill (egress, inter-AZ transfer, Enterprise Support, shared platform services) carries no tag any tool can read. The post covers the two-layer enforcement model, the Cost Categories split-charge rules that replace the monthly allocation spreadsheet, and why you show back before you charge back.

Most "RI vs Savings Plan" content treats them as peers. In mid-2026 they are not. A 3-year All-Upfront Compute Savings Plan saves a composite ~$60k/mo SaaS roughly $864k over 3 years vs a 1-year No-Upfront plan, but breaks even at ~22 months and locks instance-family flexibility. Buy the wrong commitment and a Graviton migration strands the discount. This post gives the decision tree we use.

A composite mid-market manufacturer exited a colo of 150 workloads and ~400 TB in 21 months across 8 waves, with 47 minutes of unplanned cutover downtime (industry median per Gartner: ~4 hours per major cutover). The single-wave alternative bid came in at ~$4.8M; the wave-based program ran ~$2.1M. The post covers how the wave plan, dependency cutoff, and rollback layer fit together against a hard landlord deadline.

July 2026: EU Data Act switching charges hit zero by 12 Jan 2027; AWS free DTO-on-exit still requires Support approval and typically a 90-day move window. Exit cost is re-platform time (~$113k in our model), not the ~$4,400 egress line.

July 2026 refresh of May’s production-impacting AWS launches: MCP Server + Agent Toolkit GA (us-east-1 / eu-central-1), SAP MCP on AgentCore, next-gen Resilience Hub, Scheduler SDK expansions, HealthLake CMS-0057-F.

A stack of ALB + EC2 + RDS Multi-AZ + S3 composes to ~99.83% availability, so promising customers 99.9% is a check you cannot cash. This guide does the composition math, converts it to an error budget (99.9% = 43.2 min/month), and shows why AWS service credits never fund your SLA penalties.

July 2026: Barclays ~86% plan some repatriation; IDC ~8 to 9% full exit, and both are true. Per-workload placement beats multi-cloud-by-default. Includes a scored matrix and the daily tax of “just in case” portability.

ECS CodeDeploy and Lambda aliases support both instant cutover and gradual shifts, but picking wrong costs you double Fargate spend or 21-day MTTR on muted alarms. This decision guide scores blue/green, canary, and rolling with a matrix and names App Mesh (EOL Sept 30, 2026) replacements.

A CCoE that only publishes standards decks fails within two quarters. This 2026 operating model ties platform RFCs, delegated-admin guardrails, Well-Architected reviews, and FinOps chargeback, benchmarked on a 14-account estate that cut deploy exceptions from 23/month to 6 in 90 days.