I have OpenERP 7 and I have been using it for 3 years, issue is that all of our attachments have been stored inside the database and it grew to almost 6GB

I have setup the location of saving new attachments to be on the file system through this question

https://www.odoo.com/forum/help-1/question/where-are-document-attachments-stored-529

The path of the new attachments storage for me is

/opt/openerp/server/openerp/filestore

but my issue with that would be my partition setup, OpenERP 7 is installed on a partition with only 1.4 GB of available space

so my question would be, is there a way to have the files in another folder? such as 

/home2/opt/openerp/filestore

 Also is ftp an option?