It's not the number of databases you put on a server, but the resources it takes to keep them online without any performance degradation.

For our consolidation, we collected a few...

Did you install a mail client on that server? Are the SQL Sever executables using a domain service account? Do you have the Exchange mailbox tied in with the service...

You can run 'DBCC errorlog' to recycle log. I schedule this to run everyday at midnight. I also configure SQL Server error logs to maximum logs to be 30.  

I work for a large company. We have 38 SQL Server servers running 365 databases (3 Terabytes of Data) and 118 Oracle servers running 128 instances. There are 2 of...