Hi Nick,
guckst Du hier:
http://www.microsoft.com/technet/tre...l_behavior.asp
Dort steht u.a.:
The disablelastaccess parameter is designed to reduce the logging impact of updating the last access timestamp on folders and directories. Disabling the Last Access Time improves the speed of folder and file access.
....
Note that using the disablelastaccess parameter can affect programs such as backup and Remote Storage that rely on this feature.
Ciao,
Rainer.