This video discusses the following:
MRS Overview
Finding the logs
Common startup issues overview (Symptoms and solutions)
Troubleshooting tips
References
How to unassign services from an expired key and assign them to a valid key in 9.1.0 and 9.5.1
How to automate the repository and domain back up process for disaster recovery in PowerCenter
How to find in which host the Repository Integration service is running in a multi node domain