Hitachi Data Systems Engineering UK Limited

Nxp B.v.

Hitachi Vantara Corporation

Other

Quotainne Enterprises LLC

Zahra Tabaaloute

James Gibbs

Richard Powell

Timothy Warner

Daniel Picken

Ray Brown

Joseph Smith

Chris Aston

Jon Smith

Michael Benson

Jonathan Teh

Mike Benson

At the target side, a first instruction to replicate a first target snapshot-file of a target snapshot-file tree of the target file system is received, the first target snapshot-file of the target file system being associated with a first source snapshot-file of the source file system which has been modified in the source file system. One or more data blocks which are owned by a second target snapshot-file and which are shared between the first target snapshot-file and the second target snapshot-file are identified, the second target snapshot-file being an ancestor of the first target snapshot-file in the target snapshot-file tree. Then, at the target side, ownership of the one or more identified data blocks is transferred from the second target snapshot-file to the first target snapshot-file.

Method, system and computer program product for replicating file system objects from a source file system to a target file system and for de-cloning snapshot-files in a file system

Object-level replication of cloned objects from a source file system to a target file system in a data storage system maintains relationships between related objects including shared data blocks so that storage requirements in the target file system match storage requirements of the source file system. Specialized processing may be used to scan an indirection object that refers to other file system objects such that objects requiring replication can be identified on an incremental basis based on checkpoint numbers. Checkpoints in the target file system are managed so that checkpoint number requirements for replicated clone objects are enforced in the target file system.

Object-level replication of cloned objects in a data storage system

The present invention relates to a method and an apparatus for data migration of a first file system in a data storage system comprising a plurality of client computers, a first file system managing unitfor managing the first file system and being connected to the plurality of client computers, and a second file system managing unitfor managing a second file system and being connected to the first file system managing unit, the second file system comprising a plurality of data files and the first file system comprising a plurality of external link objects, each external link object of the first file system being associated with a respective data file of the second file system for enabling client access to the respective data file of the second file system.

Method and apparatus for migration of a virtualized file system, data storage system for migration of a virtualized file system, and file server for use in a data storage system

The method performed by the apparatus includes interconnecting a first file system managing unitbetween the plurality of client computersand the second file system managing unit, creating a first directory /root in a first file system managed by the first file system managing unit, associating a first directory /root of the second file system with the first directory /root of the first file system, enabling on-demand virtualization of the second file system by the first file system managing unitbased on client requests received from the client computersat the first file system managing unitand based on the association between the first directory of the first file system and the first directory of the second file system, and enabling indirect client access to the second file system through the first file system.

Method and apparatus for virtualization of a file system, data storage system for virtualization of a file system, and file server for use in a data storage system

The method and an apparatus provides a virtualized file system enabling indirect access to a second file system in a data storage system comprising a plurality of client computersand a second file system managing unitfor managing the second file system and enabling client access to the second file system, the method comprising interconnecting a first file system managing unitbetween the plurality of client computersand the second file system managing unit, creating a directory /root in a first file system managed by the first file system managing unit, a directory /root of the second file system with the directory /root of the first file system, enabling on-demand virtualization of the second file system by the first file system managing unitbased on client requests received from the client computersat the first file system managing unit

The invention relates to a first network device outputting content, the first network device retrieving an address of a second network device using a contactless interface from a third device, and the first network device transmitting the content, which was output at the time of retrieving said address, to the second network device.

Network device and method of transmitting content from a first network device to a second network device

A method of transferring content between at least two devices, the devices being capable of outputting said content, and a device itself is disclosed. First, the devices are connected via associated interfaces. Then, there is a detection or negotiation which of the devices is currently outputting content. Finally, content, which is currently being output, is transferred from the corresponding outputting device or devices to the other device or devices via the interfaces.

Method of and device for transferring content

The invention relates to a method comprising the steps of: a first network device (DEVI) outputting content (CONT), the first network device (DEVI) retrieving an address (ADDR) of a second network device (DEV) from a third device (DEV), and the first network device (DEVI) transmitting said content (CONT), which was output at the time of retrieving said address (ADDR), to said second network device (DEV). Furthermore, the invention relates to a network device (DEVI), comprising: means for outputting content (CONT), means for retrieving an address (ADDR) of a second network device (DEV) from a third device (DEV), and means for transmitting said content (CONT), which was output at the time of retrieving said address (ADDR), to said second network device (DEV).

A method of transferring content (CONT, CONT) between at least two devices (DEV, DEV, DEV), the devices (DEV, DEV, DEV) being capable of outputting said content (CONT, CONT), and a device (DEV) itself is disclosed. First, said devices (DEV, DEV, DEV) are connected via associated interfaces (INT, INT, INT). Then, there is a detection or negotiation which of the devices (DEV, DEV, DEV) is currently outputting content (CONT, CONT). Finally, content (CONT, CONT), which is currently being output, is transferred from the corresponding outputting device or devices (DEV, DEV) to the other device or devices (DEV, DEV, DEV) via said interfaces (INT, INT, INT).

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Southampton, United Kingdom

Zahra Tabaaloute