Use to be that you broke your database files out to different drives, even on a SAN. D: for data, E: for logs, F: for large index file group, and G: for tempDB. The theory was that each drive had different disks and luns and spindles and whatever and it increased the efficiency of the database.
I am being told now that the new 2012 database server we will put all the files on one drive because it is a SAN and that is all taken care of by the SAN. From what I have seen on testing, I am not sure that is true, but I was told to let it be.
Is it true and it does not matter anymore or am I right to be concerned?
The new SAN is from Nimble Storage if that helps.