Remote copy method and computer system of the computer system

    公开(公告)号:JP4951652B2

    公开(公告)日:2012-06-13

    申请号:JP2009149654

    申请日:2009-06-24

    CPC classification number: G06F11/2064 G06F11/2074 G06F2201/855

    Abstract: When a virtual tape of the main storage system is updated, journal data is created. The journal data is transmitted to the disaster recovery storage system asynchronously with the timing at which the write data is received. The journal data includes a marker to notify of the start of updating and a marker to notify of the completion of updating. The disaster recovery storage system prohibits the use of the copy destination data during the period from start of updating until completion of updating, and permits referencing the copy destination data during other periods.

    Data-processing system
    266.
    发明专利

    公开(公告)号:JP4476683B2

    公开(公告)日:2010-06-09

    申请号:JP2004133418

    申请日:2004-04-28

    Abstract: A data processing system has a plurality of storage systems. In this system, data replication is performed at high speed and efficiency while maintaining data integrity. In addition, when failure has occurred in a configuration element, the time necessary to resume the data replication is reduced. In accordance with an instruction from first host computer, updating of replication-target data and creation of a journal are performed in a storage system A; and updating of replication data and creation of a journal are performed in a storage system B. A storage system C retrieves a journal from the storage system B in asynchronization with the updating, and performs updating of replication data. When failure has occurred in the storage system B, a journal-retrieving end is altered to the storage system, and the replication data is updated in accordance with the retrieved journal.

    Continuous backup method
    268.
    发明专利

    公开(公告)号:JP2009522655A

    公开(公告)日:2009-06-11

    申请号:JP2008548759

    申请日:2006-12-28

    Abstract: 記憶装置の連続バックアップを提供することは、記憶装置を複数のサブセクションに細分化すること、周期的に修正される時間指標を提供すること、および、特定時点の記憶装置の特定サブセクションへの新データ書込要求に応じて、特定サブセクションに対応して且つ特定時点の時間指標値に対応して新データによって上書きされるデータを維持することを含む。 サブセクションはトラックであることが可能である。 上書きされるデータを維持することは、サブセクションの各々に対応するデータの一部のリンクリストを構築することを含み得る。 データの一部は可変サイズを具備できる。 時間指標特定値の特定サブセクションへの2つのデータ書込動作に応じて、第2データ書込動作に対応するデータが第1データ書込動作に対応するデータの部分集合である場合、2つのデータ書込動作の各々に対応して書込まれるデータ同士は組合可能である。

    Information processing system
    270.
    发明专利
    Information processing system 审中-公开
    信息处理系统

    公开(公告)号:JP2008140142A

    公开(公告)日:2008-06-19

    申请号:JP2006325703

    申请日:2006-12-01

    CPC classification number: G06F11/2074 G06F2201/855 H04L67/1095 H04L67/1097

    Abstract: PROBLEM TO BE SOLVED: To smooth processing between a client and a main storage system by distributing processing of a server of the main storage system. SOLUTION: Data inputted from an input terminal device 102 is transferred to a first server 104 through a LAN 118. The data transferred to the first server 104 is accumulated in a storage device 126. A processor 112 remotely copies the data accumulated in the storage device 126 to a storage device 108. The data stored in a semiconductor memory 168 of the storage device 108 are remotely copied to a second server 106, and the data in the storage device 126 are mirrored to a storage device 146 through the semiconductor memory 168. When the data stored in the semiconductor memory 168 are differential data containing additive information, the data are also remotely copied to the storage device 146 and mirrored to the second server 106. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:通过分配主存储系统的服务器的处理来平滑客户端和主存储系统之间的处理。

    解决方案:从输入终端设备102输入的数据通过LAN 118被传送到第一服务器104.传送到第一服务器104的数据被累积在存储设备126中。处理器112将累积在 存储设备126存储到存储设备108.存储在存储设备108的半导体存储器168中的数据被远程复制到第二服务器106,并且存储设备126中的数据通过半导体被镜像到存储设备146 当存储在半导体存储器168中的数据是包含附加信息的差分数据时,数据也被远程地复制到存储设备146并被镜像到第二服务器106.版权所有:(C)2008,JPO&INPIT

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