I have 500 GB total database size.
It has a primary data file mdf file with 320 GB size currently in the primary FG.
When the primary data file was 200 GB I added 2 data files to the primary file group named data1.ndf and data2.ndf. Ever since I added that the .mdf file has grown to 320 GB from 200 GB. But the 2 added data files have grown to 2 gb each.
I am kind of lost here. When I added the data files to a file group, SQL Server is suppose to fill each data file in a round robin way. I do not see that happened here.
It is not giving any performance issues or anything. But I am wondering why sql server did not consider the 2 additional data files to allocate extents when expanding.
Other thing to mention is that I put the non-clustered indexes in a different FG called Index_fg and it has 3 data files. It has nothing to do with the Primary fg.
Any insight would be appreciated.
Thanks in advance
