Data recovery and forensic recovery can look similar technically, but the priorities are different. When evidence matters, protecting the original media comes before trying to recover the files.
Slacron and CrashSignal grew from a practical need to monitor distributed web infrastructure. This is how the architecture evolved from scheduled checks into geographically distributed monitoring, alerts and incident reporting.
High availability depends on far more than redundant servers. Power, cooling, connectivity, application design, monitoring, maintenance and the people operating the environment all matter.