RTO vs RPO: Two Clocks, and How to Set Both
RTO vs RPO compares two clocks from one failure: time offline and work lost. Set them per workload, and buy down the detection term first.
#reliability
12 posts tagged "Reliability".
HAProxy Health Check Config: Examples and Gotchas
An HAProxy health check decides which backends stay in rotation. Here are the directives that matter, sane defaults, and the failure it cannot see.
SLA vs SLO vs SLI: Which One You Have to Build
SLA vs SLO comes down to audience, but the SLI underneath is the only layer you have to build, and its definition decides what the other two mean.
Infrastructure Monitoring: The Three Collection Methods
Infrastructure monitoring is defined by how data is collected, not which metrics you chart. Here is which layer each method reaches and which it cannot.
Failover Testing: Prove the Standby Actually Works
Failover testing proves your standby takes over before a real outage runs the experiment for you. Here is how to run the drill and measure it.
MTTR and MTBF: Formulas, Targets and Pitfalls
MTTR is how long you stay broken and MTBF is how often you break. Both formulas are simple, and both hide a detection delay you control.