Covers disaster recovery for IT services: setting RTO and RPO from business impact, choosing between backup and restore, pilot light, warm standby and multi-site active/active, and writing DR plans and runbooks. Also covers failover and failback, region failure scenarios, DR testing and game days, and how DR fits within business continuity.
Covers the day-to-day operation of backups: the 3-2-1 and 3-2-1-1-0 rules, full, incremental, differential and synthetic backups, designing schedules to meet an RPO, and application-consistent backups. Also covers immutable and air-gapped copies against ransomware, retention policies, restore testing and tools such as Veeam, Velero and AWS Backup.
Covers how teams run software incidents end to end: severity levels, on-call rotations and escalation policies, the Incident Commander and supporting roles, war rooms, stakeholder communication and status pages. Also explains MTTA and MTTR, runbooks, post-incident reviews with tracked action items, and tools such as PagerDuty, Opsgenie and incident.io.
Covers running observability in production: metrics, logs, traces and profiles, OpenTelemetry instrumentation and the Collector, cardinality, sampling, and the RED and USE methods. Explains dashboard and alert design, log pipelines, distributed tracing and observability cost control with Prometheus, Grafana, Jaeger, Loki and Elastic.
Covers Google-style Site Reliability Engineering: defining SLIs, SLOs and SLAs, error budgets and error budget policies, and balancing reliability against feature velocity. Explains toil and the 50% cap, eliminating toil, blameless postmortems, the four golden signals, capacity planning and release engineering as described in the SRE book.