During peak business hours, our production database crashed. I immediately activated our disaster recovery plan, switching to the failover system to minimize downtime. Simultaneously, I informed stakeholders, providing regular updates. Diving into the logs, I identified a misconfigured query causing the crash. I applied a hotfix, stabilizing the system while monitoring for further issues. Once resolved, I conducted a post-mortem, optimized queries, and enhanced monitoring tools to prevent recurrence. Regular DR testing and proactive monitoring became priorities. Clear communication and a calm, structured approach helped restore operations and maintain trust during the crisis.

During peak business hours, multiple applications got crashed and one production database crashed. Then I have immediately started the database but still applications not working as expected. While checking at database, server and network level no issue found. I make myself calm and immediately connected with application teams to understand the issue then found it happened due to one urgent change executed at multiple databases and application level without properly verifying the scripts executed as per critical change by application DBA. We cannot go for the DR site as for that multiple application changes required. So, I have checked with application team to find the solution steps. Immediately executed the steps and resolved the issue.