initSize
The optional initSize argument of the fileAttributes command enables you to specify the number of bytes that you require for the initial size of database files; for example, explicitly (524288) or by using a prefix multiplier (512K).
The default value is 128 and the minimum value is 64K.
You can specify both this argument and the extentSize argument (separated by a space), the initSize argument only, or the extentSize argument only.