| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Remote copy method and computer system of the computer system | JP2009149654 | 2009-06-24 | JP4951652B2 | 2012-06-13 | 内角 真; 大輝 宮地 |
| 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. | ||||||
| 142 | Copy control method and a storage device | JP2006313411 | 2006-11-20 | JP4909021B2 | 2012-04-04 | 健一 小山田; 裕 山本; 和彦 渡辺; 晋広 牧; 好行 西 |
| In a copy control method, during a process for the acquisition of a data copy at a designated time, a recovery period of time can still be reduced when an input/output request is issued for copy source data at the designated time. For a system that includes a first storage device in which data are stored, a second storage device that obtains a data copy, and a host computer that writes data to the first storage device, the second storage device obtains blank input/output requests that are issued at predetermined time intervals if the host computer does not generate an input/output request for the first storage device, and the second storage device determines that a time closest to a predetermined data copy acquisition time, which is a target time for the acquisition of a data copy, is a copy execution time for the acquisition of a data copy. | ||||||
| 143 | Storage system and its replication method, and program | JP2004336180 | 2004-11-19 | JP4887618B2 | 2012-02-29 | 純一 大和; 真樹 菅 |
| 144 | The data replication method for a computer system and a computer system | JP2005335655 | 2005-11-21 | JP4813872B2 | 2011-11-09 | 泰典 兼田; 伸光 高岡 |
| A computer system includes a first storage system having a first logical volume; a second storage system connected to the first storage system and having a second logical volume and a third logical volume; and a superior device connected to the first storage system. The superior device includes a transmitter. The first storage system includes a first processing unit that records data in the first logical volume and generates update data including the data. The second storage system includes a power supply control unit that turns on a storage device which forms the second logical volume and an arbitration unit that records the update data in the second logical volume, at a timing when the update data is received from the first storage system, if the storage device which forms the second logical volume is turned off. The second storage system includes a second processing unit. | ||||||
| 145 | Storage system and storage control method | JP2005309286 | 2005-10-25 | JP4756992B2 | 2011-08-24 | 義典 松井; 晋広 牧 |
| 146 | Storage subsystem | JP2004026356 | 2004-02-03 | JP4551096B2 | 2010-09-22 | 康友 山本; 裕介 平川; 賢哲 江口; 敬史 荒川 |
| 147 | Data-processing system | JP2004133418 | 2004-04-28 | JP4476683B2 | 2010-06-09 | 義弘 安積; 裕介 平川; 和人 水主 |
| 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. | ||||||
| 148 | A data processing system having a plurality of storage systems | JP2003416414 | 2003-12-15 | JP4412989B2 | 2010-02-10 | 尚久 加迫 |
| 149 | Managing consistency group using heterogeneous replication engine | JP2009142110 | 2009-06-15 | JP2009295168A | 2009-12-17 | BOYD KENNETH W; KENNETH F DAY III; FRIAS GARCIA GERARDO DE JESUS; LINDLEY JOHN EARLE; MCBRIDE GREGORY E; ITO RYUSUKE; SHIMADA AKINOBU; FUTASE KENTA; MIZOGUCHI YASUMITSU; SUKIGARA TSUTOMU |
| <P>PROBLEM TO BE SOLVED: To manage consistency groups using heterogeneous replication engines replicating data. <P>SOLUTION: A common linkage manager issues a consistency group creation prepare command to first and second replication managers, who issue consistency group create commands to first and second replication engines. The first and second replication managers create data in first and second consistency groups which are consistent at a point in time corresponding to the consistency group create commands, and transmit them to first and second journals respectively. The first and second replication managers commit data in the first and second consistency groups of first and second journals to first and second target storages respectively in response to the first and second replication managers having received commit commands. <P>COPYRIGHT: (C)2010,JPO&INPIT | ||||||
| 150 | Computer system | JP2004299835 | 2004-10-14 | JP4376750B2 | 2009-12-02 | 健太 二瀬; 義弘 安積; 卓成 岩村; 敬史 荒川 |
| 151 | Continuous backup method | JP2008548759 | 2006-12-28 | JP2009522655A | 2009-06-11 | ビョルンソン、マグナス; マイリ、デイビッド |
| 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。 | ||||||
| 152 | Storage system and remote copy control method | JP2007297712 | 2007-11-16 | JP2009123055A | 2009-06-04 | AMAGI KENSUKE; OYAMADA KENICHI; IMAZU TAKEYUKI; MATSUI YOSHINORI |
| <P>PROBLEM TO BE SOLVED: To provide a highly reliable storage system and remote copy control method by improving RPO at the fault occurrence time. <P>SOLUTION: In a remote copy destination, a plurality of second groups including one or more second volumes are set while being made to correspond to respective first groups of a remote copy source, journals are acquired regularly from a first storage device in order of journal creation for each set second group and acquired journals are reflected in corresponding second volumes in the second groups. Whereas, latest time stamps for each second group included in the journal suspending in a state in which they are not reflected in the second volumes are compared to detect a time difference between the latest and oldest time stamps and, when the time difference exceeds a preset threshold, the journal about a second group whose time stamp is the oldest is acquired prior to journals in the other second groups. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 153 | Disaster recovery system and method | JP2007066429 | 2007-03-15 | JP2008226088A | 2008-09-25 | SUZUKI YOSHIO; KAWAMURA NOBUO; FUJIWARA SHINJI; WATANABE SATOSHI; MIZUNO KAZUHIKO |
| PROBLEM TO BE SOLVED: To provide a disaster recovery (DR) technique capable of attaining reduction in equipment cost and further easy operation. SOLUTION: In the DR system, from a standpoint of equipment cost, a physical application capable of log recovery by an inexpensive DB appliance server 400 is adapted when no retrieval is performed. Further, local mirror operation in a sub-site is not performed. From an operational standpoint, the tendency of log application or operation is monitored, and retrieval processing is received according to the progress of log application. When the log application in the sub-site cannot sufficiently catch up, retrieval is not received. Further, when the matching property of a sub-DB is ensured, transactions Tr in progress at the time of retrieval instruction are not undone, but redo processing is performed only to the Tr in progress at the time of retrieval instruction. COPYRIGHT: (C)2008,JPO&INPIT | ||||||
| 154 | Storage system and remote copy control method of storage system | JP2006087983 | 2006-03-28 | JP2007264946A | 2007-10-11 | ARAKAWA TAKASHI; FUTASE KENTA; DEGUCHI AKIRA; OKUMOTO KATSUHIRO |
| <P>PROBLEM TO BE SOLVED: To ensure consistency of stored contents between volumes even when a plurality of remote copies are respectively executed asynchronously in the storage system. <P>SOLUTION: A plurality of main storage controllers 1 and a plurality of sub storage controllers 2 are connected by a plurality of paths and the respective asynchronous remote copies are executed between respective first volumes 1A and respective second volumes 2A. Write data D1 transferred from the main storage controller 1 to the sub storage controller 2 are kept in a write data storage part 2B. Update order information D2 including the write time and a sequential number is managed in an update order information management part 2D. An update control part 3 gathers the update order information D2 from the respective update order information management parts 2D, decides the point of time at which the respective second volumes 2A can be updated and notifies respective update parts 2C. Thus, the stored contents of the respective second volumes 2A are respectively updated until the point of time at which update is allowed. <P>COPYRIGHT: (C)2008,JPO&INPIT | ||||||
| 155 | Storage system, duplex control method, and program | JP2005273474 | 2005-09-21 | JP2007086972A | 2007-04-05 | MUTO YOSHIAKI |
| <P>PROBLEM TO BE SOLVED: To provide a technology which can attain control including an efficient recovery to the duplexed state while reducing a load on a host and a user's trouble in a storage system in which data can be written in duplicate. <P>SOLUTION: Data are written in duplicate in data volumes of the main and sub storage devices from a host. Each of the storage devices holds information including updating data from the host as a journal (updated data history information). When one of the two systems for duplicate write fails and, it is returned to the duplexed state, the journal is communicated between the storage devices not through the host. Then, a held journal after the latest synchronization point is transferred to a system to be recovered by means of data copying, the held journal being a part of a journal of normal system and necessary for the synchronization of the volumes. Then, the volumes are restored based on the held journal and then synchronized. <P>COPYRIGHT: (C)2007,JPO&INPIT | ||||||
| 156 | Remote copy system and remote copy method | JP2005116083 | 2005-04-13 | JP2006293850A | 2006-10-26 | IWAMURA TAKANARI |
| <P>PROBLEM TO BE SOLVED: To provide a remote copy system capable of managing the duplication by a remote copy of a table from a database control system. <P>SOLUTION: A host computer 2A defines the pair formation of the first storage device 3A as the copy source and the second storage device 3C as a copy destination, creates a conversion table 27 for address conversion to a data region corresponding to a table and a log on the first storage device 3A from the table and the log of the database which are the definition object of the formed pair, and instructs the defined pair formation to the first storage device 3A using the conversion table 27. The first storage device 3A creates the pair relation of the defined copy source and copy destination in a pair state management table 48 according to the instruction from the host computer 2A. The data to be copied are remotely copied to the second storage device 3C which is the copy destination. <P>COPYRIGHT: (C)2007,JPO&INPIT | ||||||
| 157 | Storage system, its replication method, and program | JP2004336180 | 2004-11-19 | JP2006146580A | 2006-06-08 | SUGA MAKI; YAMATO JUNICHI |
| <P>PROBLEM TO BE SOLVED: To provide a system and a method for reducing redundant data transfer and performing replication using a network having a narrow band. <P>SOLUTION: An application that operates on a host 1 issues data writing or reading instructions, similarly as a normal storage system. A monitoring means 7 monitors the host 1 and instructions issued by the host 1, detects a resumable point, and issues the resumable point to a storage 2. In response to the resumable point, the storage 2 converts a plurality of instructions stored in a buffering part 24 into transfer instructions that reduce redundant data transfer, and transfers the instructions to another storage 4. The storage 4 applies the received instructions to a storage part 44, in which case the transfer instructions are restored to the normal instructions. <P>COPYRIGHT: (C)2006,JPO&NCIPI | ||||||
| 158 | Storage system and data processing system | JP2004228203 | 2004-08-04 | JP2006048358A | 2006-02-16 | HIRAKAWA YUSUKE; AZUMI YOSHIHIRO |
| <P>PROBLEM TO BE SOLVED: To transfer or duplicate data between a plurality of storage systems without affecting the higher-level computers of each storage system. <P>SOLUTION: The storage system 100A includes a data set storage area J for storing data sets each including data and update data for managing the data, and a control part 101A. The data set storage area J is divided into a plurality of storage areas including a first storage area #1A and a second storage area #2A. The control part 101A creates a first data set including first data and first update data serving as the update data thereof, stores at least the first data of the first data set in the first storage area #1A, creates a second data set including second data and second update data serving as the update data thereof, and stores at least the second data of the second data set in the second storage area #2A other than the first storage area #1A. <P>COPYRIGHT: (C)2006,JPO&NCIPI | ||||||
| 159 | Remote copying method and system | JP2004122431 | 2004-04-19 | JP2005309550A | 2005-11-04 | ITO RYUSUKE; HIRAKAWA YUSUKE; AZUMI YOSHIHIRO; KAGA TAKASHI |
| <P>PROBLEM TO BE SOLVED: To solve the problem wherein a configuration that must transfer data from a first to a third storage system via an intermediate storage system must prepare an extra logical volume in the second intermediate storage system. <P>SOLUTION: A remote copying system has a first storage system that exchanges data with an information processing apparatus, a second storage system, and a third storage system. The second storage system has virtually a second storage area to which the data should be written, and has a third storage area to which the data written in the former storage area and update information about the data are written. The data sent from the first storage system are not written in the second storage area but written in the third storage area as data and update information. The data and update information written in the area are read from the third storage system. <P>COPYRIGHT: (C)2006,JPO&NCIPI | ||||||
| 160 | Storage subsystem | JP2004026356 | 2004-02-03 | JP2005222110A | 2005-08-18 | EGUCHI KENTETSU; YAMAMOTO YASUTOMO; ARAKAWA TAKASHI; HIRAKAWA YUSUKE |
| <P>PROBLEM TO BE SOLVED: To restore data up to a failure occurrence time in a remote site at high speed without placing a burden on a host. <P>SOLUTION: A first storage system on a master side processes an input and output request from a host, transmits update data as a result of of input and output processing to a second storage system on a remote side. The second storage system holds the data received from the first storage device as updated log data. The host transmits a command for determining the state of an application as data to the first storage system, and the first storage system transmits these data to the second storage system. Both the host and the second storage system hold an identifier corresponding to the command while associating the identifier with log data. The host instructs the command, whereby the data at an optional time are restored in the second storage system. <P>COPYRIGHT: (C)2005,JPO&NCIPI | ||||||
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