Western Digital Technologies, Inc.

Gabriel Ribeiro

Sailesh Rachabathuni

Jonathan Gaillard

Stephen Allen Hellwege

Samuel Kevin Baughman

Rajesh Mirkhelkar

Systems and methods are disclosed for reconstructing a file hierarchy by scanning attributes of stored files. Stored files can have a file hierarchy that is maintained in a database stored on a storage device. The files can be stored as objects on the device using a flat file structure. The file database provides the file hierarchy. The systems and methods disclosed herein store information in file system extended attributes for individual storage files such that the database can be reconstructed by scanning the storage files, using values in the extended attributes to recreate the hierarchical database.

Using file system extended attributes to update databases in hierarchical file systems

Systems and methods are disclosed for establishing connections between computing devices. A first computing device may communicate data via a symmetric NAT and a second computing device may communicate data via a cone NAT. The first computing device may establish a connection, such as a peer-to-peer (P2P) connection, between the first computing device and the second computing device via the symmetric NAT and the cone NAT.

Establishing connections between data storage devices

Systems and methods are disclosed for managing partial-edit files for shared storage applications. A network-attached storage device (NAS) includes a non-volatile memory module, a network interface, and control circuitry configured to connect to a first client over a network connection using the network interface, receive, from the first client, a request to access a first portion of an existing file stored in the non-volatile memory module, create a first partial-edit file based on the existing file, receive modifications associated with the first portion of the existing file from the first client, modify the first partial-edit file according to the received modifications, and at least partially overwrite the existing file with at least a portion of the first partial-edit file.

File consistency in shared storage using partial-edit files

Using file system extended attributes to recover databases in hierarchical file systems

A computer-implemented method may comprise performing a disaster recovery restore process on a target computing device; accessing a backup server; and selecting a source backup from the backup server. The source backup may comprise one or more volumes, partitions, files and device drivers of a source computing device from which the source backup was created. The selected source backup may then be installed in an offline partition of the target computing device. One or more target device drivers may then be installed in the offline partition. To complete the disaster recovery restore process on the target computing device, the target computing device may then be rebooted. Both the backup of the source computing device and the active partition of the target device may comprise source computing device-dependent hardware device drivers. When carried out in a Windows&#xae; environment, Sysprep need not be used and the kernel need not be modified.

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San Francisco, CA, United States of America

Gabriel Ribeiro