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Shoji Kodama

Researcher at Hitachi

Publications -  88
Citations -  1673

Shoji Kodama is an academic researcher from Hitachi. The author has contributed to research in topics: Computer data storage & Stub file. The author has an hindex of 23, co-authored 88 publications receiving 1673 citations.

Papers
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Patent

Direct access storage system with combined block interface and file interface access

TL;DR: A storage system includes a storage controller and storage media for reading data from or writing data to the storage media in response to block-level and file-level I/O requests as discussed by the authors.
Patent

Data replication with rollback

TL;DR: In this article, a storage device can selectively replicate one or more data portions from a real dataspace to a virtual one, and for selective rollback of data portions to the real one.
Patent

Failover and data migration using data replication

TL;DR: In this article, a virtual volume module in a host system provides virtual volume view to user-level and system-level applications executing on the host system, which can map application I/O's to a second volume in a second storage system.
Patent

Multiple processor data processing system with mirrored data for distributed access

TL;DR: In this article, a data storage includes multiple disk units accessible to multiple processors/servers, including a master disk unit and a one or more data-mirroring disk units.
Patent

Storage system and snapshot management method

TL;DR: In this article, the authors propose a snapshot management method for storage systems, where the first storage controller receives a request from the host computer to create a snapshot in the second storage controller, it suspends transferring differential data to the second controller, creates a new first snapshot, and transfers differential data for the created first snapshot together with the untransferred differential data from a previous first snapshot for which transferring had been suspended, to another storage controller.