Hi,  See [URL]#529262. The responsible for translate the SID's in names ( user and groups ) are the domain controllers.This symptom can have some reasons, but I would verify the Active Directory first. Please see primus : emc224853 "SIDs instead of names show in File Properties Security tab".emc230156 "One reason why SID cannot be translated into name in Windows Explorer File properties security tab"  If those solutions does not help, please open a support ticket. Gustavo Barreto.
We performed successfull reboot of EMC NS20, with CIFS server, member of Windows 2008 R2 domain. Now When I cleck on any folder, NTFS permission, it displays only the SID's and not the actual user ID. What is the problem? Appreciate your quick reply.
CIFS permission only SID is listed