Back in the days of when I was an Oracle DBA I had to solve a strange behaviour on an Oracle installation. The system for some reasons stopped accepting the writes occasionally and without an apparent reason. This behaviour appeared odd to anybody except for my team, which addressed the issue immediately. The problem was caused by a not optimal configuration on the Oracle instance. This thought led me to writing this post.
Few years ago I went trough a massive frustration. My team aligned with the rest of the company in using the Agile methodology. Initially the team decided to use Scrum then it switched to a sort of kanban. However even both approaches failed miserably dropping the team in utter chaos. I remember the daily standups. It was like playing a stage role, people stated the tasks for the day knowing that that task would be not the one the will work on it.
An ancient italian proverb says Il backup è quella cosa che andava fatta prima. A rough translation could be something like this: the backup is the thing that had to be done before. The concept of backup is quite confusing. Some people wrongly believe that executing a local backup is sufficient to ensure the recover of the data. In the real world a valid backup is present only if three conditions are true.