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    • 113. 发明申请
    • DATABASE PROCESSING METHOD AND DATABASE PROCESSING SYSTEM
    • 数据库处理方法和数据库处理系统
    • US20100293156A1
    • 2010-11-18
    • US12712662
    • 2010-02-25
    • Michiko TanakaKazutomo UshijimaAkira ShimizuSeisuke TokudaShinji FujiwaraNobuo Kawamura
    • Michiko TanakaKazutomo UshijimaAkira ShimizuSeisuke TokudaShinji FujiwaraNobuo Kawamura
    • G06F17/30
    • G06F17/30306
    • Provided is a database processing system including: a computer for outputting data in response to a received query request; and a storage system including a storage device for storing the data, in which: the storage device stores a plurality of partial indices indicating a storage location of the data; the data stored in the storage device is grouped; and the computer is configured to: receive the query request for the data; acquire one of the plurality of partial indices; specify, based on the query request for the data and the acquired one of the plurality of partial indices, a location at which the requested data is stored; and send a request to acquire the data stored at the specified location to the storage system. Accordingly, in the database processing system, a time period necessary to input and output the data is shortened.
    • 提供了一种数据库处理系统,包括:计算机,用于响应于接收的查询请求输出数据; 以及存储系统,包括用于存储数据的存储装置,其中:所述存储装置存储指示所述数据的存储位置的多个部分索引; 存储在存储设备中的数据被分组; 并且计算机被配置为:接收对数据的查询请求; 获取所述多个部分索引中的一个; 基于所述数据的查询请求和所述多个部分索引中获取的一个部分索引,指定存储所请求的数据的位置; 并发送请求以将存储在指定位置的数据存储到存储系统。 因此,在数据库处理系统中,输入和输出数据所需的时间段被缩短。
    • 114. 发明授权
    • Database management system to reduce capacity of storage volume
    • 数据库管理系统降低存储容量
    • US07698320B2
    • 2010-04-13
    • US11708012
    • 2007-02-20
    • Seisuke TokudaShinji Fujiwara
    • Seisuke TokudaShinji Fujiwara
    • G06F7/00G06F17/00
    • G06F11/1471G06F11/1456G06F11/1469G06F2201/80G06F2201/84
    • Provided is a database management system coupled to a storage system comprising a first storage device for storing a database file and a control file, a second storage device for storing a journal corresponding to an update history of the data stored in the first storage device, and a third storage device for storing a log file; generating the journal upon receiving an update instruction; and recording the generated journal to the second storage device in correspondence with a check point. The database management system records the log to the third storage device in correspondence with identification information of the generated check point, restores data stored in the storage system by employing a journal stored in the second storage device before check point, and applies the log stored in the third storage device after the check point to restore a database file.
    • 提供了一种耦合到存储系统的数据库管理系统,包括用于存储数据库文件和控制文件的第一存储设备,用于存储与存储在第一存储设备中的数据的更新历史相对应的日志的第二存储设备,以及 用于存储日志文件的第三存储设备; 在收到更新指令后生成日志; 并且将所生成的日志与对应于检查点的所述第二存储设备进行记录。 数据库管理系统根据生成的检查点的识别信息将日志记录到第三存储装置,通过在检查点之前采用存储在第二存储装置中的日志恢复存储在存储系统中的数据,并且将存储在 检查点后第三个存储设备恢复数据库文件。
    • 116. 发明授权
    • Buffer updates and data evacuation in a storage system using differential snapshots
    • 使用差分快照在存储系统中缓存更新和数据撤离
    • US07610460B2
    • 2009-10-27
    • US11454088
    • 2006-06-16
    • Satoru WatanabeYoshio SuzukiShinji Fujiwara
    • Satoru WatanabeYoshio SuzukiShinji Fujiwara
    • G06F13/14G06F12/12
    • G06F11/1466G06F2201/84
    • A method of managing data by a storage system having first and second volumes according to a command from a server computer, including receiving a data access command from the server computer; specifying a data area that is designated in the data access command and reading data in the data area from the first volume; judging whether the data access command contains a data evacuating instruction; judging whether the data in the data area has been evacuated to the second volume when the data read command contains the data evacuating instruction; evacuating the data in the data area to the second volume when the data in the data area has not been evacuated to the second volume; and sending the data in the data area to the server computer. The invention reduces loads on the storage system when a differential snapshot is used.
    • 一种根据来自服务器计算机的命令由具有第一和第二卷的存储系统管理数据的方法,包括从所述服务器计算机接收数据访问命令; 指定在数据访问命令中指定的数据区域,并从第一卷读取数据区域中的数据; 判断数据访问命令是否包含数据撤离指令; 当所述数据读取命令包含所述数据撤回指令时,判断所述数据区域中的数据是否被撤回到所述第二卷; 当数据区域中的数据未被抽空到第二卷时,将数据区域中的数据撤回到第二卷; 并将数据区域中的数据发送到服务器计算机。 当使用差分快照时,本发明减少了存储系统上的负载。
    • 117. 发明授权
    • System and method for disaster recovery of data
    • 数据灾难恢复的系统和方法
    • US07587627B2
    • 2009-09-08
    • US11224112
    • 2005-09-13
    • Kazuhiko MizunoShinji FujiwaraYoshio Suzuki
    • Kazuhiko MizunoShinji FujiwaraYoshio Suzuki
    • G06F12/00
    • G06F11/2066G06F11/2071Y10S707/99953
    • When a public line is used for a remote copy function of storage in a disaster recovery (DR) system, the online performance is degraded due to the increase and decrease of the line utilization rate. Therefore, it is desired to change the remote copy function depending on the line utilization rate. Also, there is the possibility of data loss if disaster occurs during the copy between storage devices. Therefore, it is desired to perform the processing to detect the data status immediately before the occurrence of the disaster. By switching the synchronous transmission and the asynchronous transmission in accordance with the increase and decrease of the response time of the remote copy function between storage devices, the online performance of the primary site can be maintained without being influenced by the line utilization rate, and the data loss can be detected based on the used remote copy function.
    • 当在灾难恢复(DR)系统中使用公共线路进行远程复制功能存储时,由于线路利用率的增加和减少,在线性能下降。 因此,希望根据线路利用率来改变远程复制功能。 此外,如果在存储设备之间复制期间发生灾难,则可能会丢失数据。 因此,期望在紧急发生灾难之前执行检测数据状态的处理。 通过根据存储设备之间的远程复制功能的响应时间的增加和减少来切换同步传输和异步传输,可以保持主站点的在线性能,而不受线路利用率的影响,并且 可以根据使用的远程复制功能检测数据丢失。
    • 118. 发明申请
    • Memory area management method
    • 内存区管理方法
    • US20090024810A1
    • 2009-01-22
    • US12219051
    • 2008-07-15
    • Daisuke ItoShinji FujiwaraKazuo OtsugaShinya Kajiyama
    • Daisuke ItoShinji FujiwaraKazuo OtsugaShinya Kajiyama
    • G06F12/00
    • G06F12/0246
    • In a storage device, a method is provided for preventing the risk of data loss and a significant decrease of writing speed due to area shrinkage when erased erase blocks have become fewer. A process of allocating a new page includes determining whether the length of a deallocated pages list is longer than n pages. If the list length is longer, one page is allocated from the deallocated pages list. If the list length is shorter, a capacity shortage error returns. Deleting a file using an erased pages list includes determining whether a page to be processed is emptied by deleting the file. If not so, the file is deleted from the page. If so, the contents of the last page-a in occupied pages are copied to the page, the page-a is written with data for erasure, and any erase block included in the page-a is made erasable.
    • 在存储装置中,提供了一种防止数据丢失的风险的方法,并且当擦除擦除块变得更少时,由于面积缩小而显着降低写入速度。 分配新页面的过程包括确定取消分配页面列表的长度是否长于n页。 如果列表长度较长,则从取消分配的页面列表中分配一个页面。 如果列表长度较短,则容量短缺错误返回。 使用删除的页面列表删除文件包括确定要处理的页面是否通过删除文件被清空。 如果不是这样,该文件将从页面中删除。 如果是这样,被占用页面中的最后一页的内容被复制到页面,页面a被写入用于擦除的数据,并且包含在页面a中的任何擦除块被擦除。