If you’ve never come across SQL Server trace flags then don’t worry, you’re not alone and most of the time no one in a normal scenario needs to know such beasts exist.

There are some occasions when an obscure (even more obscure than the whole topic is anyway) trace flag might help.

In this case the article descibes a trace flag with questionable value.

Having to extend one file can be bad enough but then having to expand all files in a file group can *really* hurt.