Keeping current system documentation in the data center is essential in maintaining a healthy data center. Implement runbooks to ensure knowledge continuity and speed the issue resolution cycle.
Runbook 101
A runbook is a close-to-hand document (physical or electronic) containing information needed to configure, operate, monitor, administer, troubleshoot, repair, and restore an IT service. Dependencies, interrelations, failover, and backup information should be recorded as well.