1. If there is no more space in ap21，we will receive this kind of alert emails，

2. The best place to erase files is this folder ：

3.  in the folder，

1>- Per day, we have 4 archives done of BW files ,sometimes 5

2>- The archive of files is not deleted automatically, is done manually by us (Etienne or Pablo). 

• As a general rule, We try to keep 2 months worth of archive.