File Servers: Filr requires no changes to existing file servers or directory services. There is no new software to install on existing file servers.
File Systems: There are no changes to existing file systems. File system rights, trustee assignments, storage quotas, and so on are all honored. This is because all file access is controlled by the file systems just as it was before Filr was installed.
Directory Services: There are no schema extensions or other changes required to existing directory services.