Well, this has been discussed before in the DBMAN forums. You can do some simple calculations like the following:
1) Number of records (let's say 5,000)
2) Number of fields (let's say 25)
3) Number of bytes per field (let's say an average of 100 per field, some a lot less, some a lot more)
With this simple estimated calculations, you would have:
12 MGs of data
Now, this is just a simple example, but the average range of records with the default number of fields and configurations for DBMAN and Links 2.0 for that matter is between 3,000 and 5,000 records.
Anymore than that, than you will start seeing system degradation in terms of adding, editing, deleting, and searching data.
Hope this helps...
Regards,
Eliot Lee
http://anthrotech.com/