Yasuo Yamasaki

Method for rolling back from snapshot with log

NAS system and remote copy method

Data backup method in a network storage system

Information processing system for updating data in a shared network storage system

Data recovery method in differential remote backup for a NAS system

Preventive measure against data overflow from differential volume in differential remote copy

Access controller that controls access to files by using access control list

Root node for integrating nas of different user name spaces

Storage controller managing logical volume

Method of restoring data by CDP utilizing file system information