I would like to enable shadow copies on our main File Share. The file share is made up of two file servers that are part of a DFS. I am concerned about space and performance. Both my file servers have 1.39TB D drives that I share with DFS. Both servers have 460GB of free space at this time. All the DFS replication works fine, but if a user looses a file I need to go back to backups to restore a simple excel or word doc. I am hoping to offer shadow copies. I see where I right click the D drive and "enable shadow copies". It looks like the default limits are about 10% of the actual drive size. I am assuming it is best to use limits. Is it possible for me to just enable this for say once a week to get thing started, so I can get the feel of how it works and watch what it does to my disk space? Do I just enable Shadow copies for the D drive and modify SETTINGS and check only one day of the week. What will this do to my drive space. Does it sound like I have sufficient space with only 460GB of 1.39TB available?