Clear log files for exchange if your out of disk space

Dismount any databases, or if the database won't mount because the disk is full.  If the database won't mount, check and make sure it is in a clean shutdown state:

eseutil /MH "Database Location and Name"

Make sure it reports "clean shutdown" or "consistent"

MOVE the log files to somewhere you have space and remount the database.

Users redirectored folders show as My Documents in the folders

If you are redirecting folders to a server share and the folders all show as "My Documents" this could be due to the desktop.ini in the root of the users folder.  If the administrators or domain admin group has full control, set them to deny read.  Make sure the user is the owner of the folder as well.