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 find in which host the Repository Integration service is running in a multi node domain
How to automate the repository and domain back up process for disaster recovery in PowerCenter