On changing the log file growth to unrestricted. Using the management studio UI, simply clicking on the properties of the DB and then files and then change the option to unrestricted growth on the log file and hitting ok and check the properties, it flips back to unrestricted
Database file was created with the maxsize defined, we altered the database and change the maxsize to unlimited. But afterwards it reverted to the previous max size.
It is by design as advised on
Specifies that the file grows until the disk is full. In SQL Server 2005, a log file specified with unlimited growth has a maximum size of 2 TB, and a data file has a maximum size of 16 TB.
To get this 'unrestricted' radio button enabled for the log file growth again is to;
- backup db
- detach db
- rename log file to something xx_old.ldf
- attach db again using only the MDF file again and letting SQL create a new log file for you
- delete xx_old.ldf file if all successful