My event log has been spamming with messages from Event ID 6398, SharePoint Foundation reading:  The Execute method of job definition Microsoft.Office.Server.UserProfiles.UserProfileImportJob (ID c20274aa-c269-485a-bad8-cd7f539090cc) threw an exception. More information is included below. Access to the requested resource(s) is denied

Following various instruction online I restated the FIM services.

For those of you wondering what FIM Services are:

  • Forefront Identity Manager Service
  • Forefront Identity Manager Synchronization Service

Restarting these did not resolve my issue

For now this is a open issue while I continue to search out the cause and how to correct it

I also am noticing another event; event id 2138 reading:

The following content databases have grown larger than 100 GB. Large content databases can be difficult to backup and restore. They are also more likely to cause application hangs when operations that affect entire databases are performed. <content database> on <server>

I found the following: https://technet.microsoft.com/en-us/library/Hh685079.aspx

This still does not give me any reason why users are unable to upload files or why file uploading is slow