The General tab of the Dbspace property sheet has the following components:
Name Shows the name of the dbspace.
Type Shows the type of object.
File Shows the name of the database file that the dbspace points to. For new spaces, you can supply a new file name. You can also click Browse to locate the file.
Pre-allocate Space Now Displays the Pre-allocate Space for Dbspace dialog, which lets you pre-allocate storage in the dbspace by adding pages to it. Adding pages may improve performance for bulk-loading operations.