· 2 min read
What does an availability zone promise?
A London power event in one zone became eight hours of region-wide errors. A briefing on what a zone isolates, and where that isolation quietly leaks.
#resilience#availability#incident-analysis
Tagged: availability
5 articles
· 2 min read
Can you operate the system while the dashboard is down?
Cloudflare logged three incidents in one day and kept serving traffic through all of them. A briefing on control planes, data planes, and which one your runbook secretly needs.
#control-plane#availability#operations
· 1 min read
What runs when IAM stops answering?
On August 20 Google Cloud's us-west1 lost identity and access management for 76 minutes and key management for 43. A briefing on the dependency nobody draws.
#availability#identity#dependencies
· 2 min read
What is a serverless SLA worth?
The SLA answers a different question than the one you asked. A briefing on reading availability commitments as an engineer rather than a lawyer.
#serverless#availability#sla
· 2 min read
How many nines do you need?
Availability targets are purchases, and each nine costs roughly ten times the last. Pricing the promise before signing it.
#diligence#availability#slo