This is a stand-alone bare metal server located at a hosting facility with some local storage as well as NAS storage. SQL Server 2016 Standard Edition, 8 cores, 128GB RAM. The primary database is nearing 1TB and is has multiple filegroups (Active, Archive, Indexes, etc.). This database and apps that touch it ARE the company.
Read on for Kevin’s process, which was a solid bit of troubleshooting.