Kenji Yamagami

Method and apparatus for backup and recovery system using storage based journaling

Method and apparatus for managing replication volumes

Data processing system including storage systems

Apparatus and method for transmitting frames via a switch in a storage area network

Methods and apparatus for backup and restoring systems

Method and apparatus for data recovery system using storage based journaling

Computer system and a method of assigning a storage device to a computer

Method and apparatus for managing storage based replication

Data replication with rollback

Path selection methods for storage based remote copy