Took the job of monitoring and tuning a few dozens SQL Server 2012 Enterprise Ed. SP1 (64 bit) on Windows Server 2008 R2 Standard Ed. running inside virtual machines.
All of them on running
select @@servername select * from sys.servers
return the same machine autogenerated during Windows setup name
These production servers works over 2 (probably much more) years.
As far as I can guess the hosts' name were changed after installing SQL Server.
What are the compelling reasons for updating SQL Servers name for its real host names?
And which surprises should I be ready for after such changes?