I realise in hindsight that I was rambling from the point of view of offering five nines for software that is inherently flaky/unreliable. Companies where developers cycle through and knowledge is lost, technical debt accumulates and systems are used almost counter to their intended purpose (ie Redis as a database)
In that sense, it's like constantly massaging applications to stay alive or at a reasonable level of service and so hence the assumption that someone will be paged and respond in order to preempt a failure or restore service during an outage.
I realise in hindsight that I was rambling from the point of view of offering five nines for software that is inherently flaky/unreliable. Companies where developers cycle through and knowledge is lost, technical debt accumulates and systems are used almost counter to their intended purpose (ie Redis as a database)
In that sense, it's like constantly massaging applications to stay alive or at a reasonable level of service and so hence the assumption that someone will be paged and respond in order to preempt a failure or restore service during an outage.