Complex system and data transfer method
AssigneeHitachi, Ltd.
InventorsAkira Yamamoto, Ryosuke Tatsumi, Yoshinori Ohira, Junji Ogawa
Life of this patent
Estimating the term…
Abstract
In a complex system including; one or more storage systems including a cache and a storage controller; and one or more storage boxes including a storage medium, the storage box generates redundant data from write data received from a server, and writes the write data and the redundant data to the storage medium. The storage box transmits the write data to the storage system when it is difficult to generate the redundant data or it is difficult to write the write data and the redundant data to the storage medium. The storage system stores the received write data in the cache.
Claims15
A complex system comprising;
- one or more storage systems including a cache and a storage controller;
- and
- a storage box including a storage medium,
- wherein the storage box:
- when redundant data from write data received from a server can be generated by the storage box, generates the redundant data from the write data received from the server;
- when the storage box can write the write data and the redundant data to the storage medium, writes the write data and the redundant data to the storage medium;
- and
- transmits the write data to the one or more storage systems when the storage box cannot generate the redundant data or cannot write the write data and the redundant data to the storage medium;
- and
- the one or more storage systems stores the received write data in the cache.
A data transfer method in a complex system including:
- one or more storage systems including a cache and a storage controller;
- and a storage box including a storage medium,
- wherein the storage box:
- when redundant data can be generated from write data received from a server by the storage box, generates the redundant data from the write data received from the server;
- when the storage box can write the write data and the redundant data to the storage medium, writes the write data and the redundant data to the storage medium;
- and
- transmits the write data to the one or more storage systems when the storage box cannot generate the redundant data or cannot write the write data and the redundant data to the storage medium, and
- the one or more storage systems stores the received write data in the cache.
Dependencies are inferred from the claim text.