HP Visualize J5000 hp enterprise file system: planning and configuring hp DCE/ - Page 13
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About HP DCE/9000 Enhanced DFS Benefits Benefits Enhanced DFS 3.0 provides a number of benefits, including the following: • Allows faster restarts after abnormal system shutdowns using the DCE LFS log- based file system • Uses tokens to ensure that users are working with the most-recent copy of a file and to track who is working on the file • Allows administrators to replicate commonly used DCE LFS filesets on multiple File Server machines • Allows easier recovery from severe system failures • Provides increased availability of files through replication and caching • Improves load balancing of data • Tracks the location of every fileset • Extends the UNIX permissions to provide more precise definitions of access permissions for directories and files using ACLs • Allows the use of data from non-LFS file systems • Allows the addition of server and client machines to an HP DCE/9000 DFS configuration with little impact on other servers or clients and with few additional administrative responsibilities • Supports enhanced administration and security • Stores central copies of system configuration and binary files on designated machines and distributes these files to other server machines in the network • Backs up and restores system and user data as needed Enhanced DFS 3.0 operates on top of and interacts with the following HP DCE 1.7 components: • DCE Security Service • DCE Directory Service • DCE Distributed Time Service • DCE Remote Procedure Call facility 13