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    • 3. 发明申请
    • FILE INPUT/OUTPUT METHOD
    • 文件输入/输出方法
    • US20100205329A1
    • 2010-08-12
    • US12538546
    • 2009-08-10
    • Toshiyuki UKAITsuyoshi TANAKATakashi YASUI
    • Toshiyuki UKAITsuyoshi TANAKATakashi YASUI
    • G06F13/00G06F12/00
    • G06F3/061G06F3/0643G06F3/067
    • Provided is a computer system comprising a computer and a plurality of storage devices. The plurality of storage devices store divided data which is obtained by dividing data contained in a file which can be accesed by the computer. The computer holds configuration information of the processor included in the computer and configuration information of the file which is stored by dividing the file; divides an I/O request of the file into a plurality of I/O requests for the plurality of storage devices; determines whether a predetermined condition is satisfied or not; and assigns a plurality of I/O threads of a number determined based on a result of the determination to the divided plurality of I/O requests. The processor inputs/outputs the divided data of the file held in the plurality of storage devices by using the assigned the plurality of I/O threads.
    • 提供了一种包括计算机和多个存储设备的计算机系统。 多个存储装置存储通过分割包含在可由计算机访问的文件中的数据而获得的分割数据。 计算机保存包含在计算机中的处理器的配置信息和通过分割文件存储的文件的配置信息; 将所述文件的I / O请求划分成用于所述多个存储设备的多个I / O请求; 确定是否满足预定条件; 并且将基于确定结果确定的数量的多个I / O线程分配给分割的多个I / O请求。 处理器通过使用分配的多个I / O线程来输入/输出保存在多个存储装置中的文件的分割数据。
    • 6. 发明授权
    • Data prefetch control method for main storage cache for protecting
prefetched data from replacement before utilization thereof
    • 用于主存储缓存的数据预取控制方法,用于在使用之前保护预取数据不被替换
    • US5983324A
    • 1999-11-09
    • US823836
    • 1997-03-25
    • Toshiyuki UkaiMasaaki ShimizuFujio Fujita
    • Toshiyuki UkaiMasaaki ShimizuFujio Fujita
    • G06F12/08G06F12/12
    • G06F12/126G06F12/0862G06F12/0866
    • When the OS judges that a read request to the secondary storage device from the user process is the sequential access, the OS judges whether prefetching is to be stopped before the data succeeding to the data designated by the request is prefetched, so as to decrease replacement of data prefetched to the main memory by other data before the data is used. The judgment is executed to prevent that succeeding data from being replaced by other data after the succeeding data is prefetched to the cache area in the main memory. That is, it is judged whether the data requested by the read request has already been prefetched, and has already been replaced by other data before the requested data is used by the user process, if the requested data has been prefetched. When these two conditions are met, prefetch is useless. The prefetching accompanying this read request is not executed, the prefetch stop flag is set, and prefetching is prohibited to the succeeding sequential access by this prefetch stop flag. The technology is also disclosed which controls allocation of the cache entries so that a cache entry which holds prefetched data is not used to hold other data before the data is used.
    • 当OS判断从用户进程到辅助存储设备的读取请求是顺序访问时,OS判断是否在预取了由请求指定的数据之后的数据被预取之前是否停止预取,以便减少替换 的数据在使用数据之前被其他数据预取到主存储器。 执行判断以防止在将后续数据预取到主存储器中的高速缓存区域之后,其他数据被替换。 也就是说,如果所请求的数据已被预取,则判断读请求所请求的数据是否已经被预取,并且在所请求的数据被用户进程使用之前已被其他数据替换。 当满足这两个条件时,预取是无用的。 不执行伴随该读请求的预取,预取停止标志被设置,并且通过该预取停止标志禁止对后续顺序访问的预取。 还公开了控制高速缓存条目的分配的技术,使得保存预取数据的高速缓存条目在数据被使用之前不被用于保存其他数据。
    • 7. 发明申请
    • Computer System And Data Management Method
    • 计算机系统与数据管理方法
    • US20130325915A1
    • 2013-12-05
    • US13823186
    • 2011-03-01
    • Toshiyuki Ukai
    • Toshiyuki Ukai
    • G06F17/30
    • G06F16/182
    • A computer system, comprising: a plurality of computers for storing data; a management computer for managing the data; and a storage, the management computer stores: storage configuration information including information on the storage areas; and file management information including information relevant to placement of the plurality of pieces of division data; the management computer is configured to: identify the file system being a storage destination of a file, in a case of receiving a file generation request including the file identification information on the file from at least one of applications; refer to the storage configuration information to determine the placement method for the plurality of pieces of division data, generated from the plurality of pieces of file data of the file; generate the file management information.
    • 一种计算机系统,包括:用于存储数据的多个计算机; 用于管理数据的管理计算机; 和存储器,管理计算机存储包括关于存储区域的信息的存储配置信息; 以及文件管理信息,其包括与所述多个分割数据的放置有关的信息; 管理计算机被配置为:在从应用程序中的至少一个接收包括文件的文件标识信息的文件生成请求的情况下,识别作为文件的存储目的地的文件系统; 参考存储配置信息来确定从文件的多个文件数据生成的多个分割数据的放置方法; 生成文件管理信息。
    • 8. 发明授权
    • Computer system and data processing method for computer system
    • 计算机系统的计算机系统和数据处理方法
    • US08555107B2
    • 2013-10-08
    • US13012094
    • 2011-01-24
    • Takashi YasuiToshiyuki Ukai
    • Takashi YasuiToshiyuki Ukai
    • G06F11/00
    • G06F11/1482G06F11/20
    • A plurality of computers to execute jobs, a management computer to manage the execution of jobs and the disposition of data in the computers and a storage device storing data are interconnected via a network. The management program for the management computer divides the data into distributed data according to hint information and distributively disposes the distributed data and their replicas in memory storages allocated in memories of the computers. The computers execute the job using the distributed data allocated to their own memory. In the event of a fault in any of the computers, the management computer requests computers having the replicas of those distributed data disposed in the faulted computer to re-execute the job.
    • 用于执行作业的多个计算机,用于管理作业的执行的管理计算机和计算机中的数据的处理以及存储数据的存储设备经由网络互连。 管理计算机的管理程序根据提示信息将数据划分为分布式数据,并将分布式数据及其副本分配到分配在计算机的存储器中的存储器中。 计算机使用分配给自己的内存的分布式数据执行作业。 在任何计算机发生故障的情况下,管理计算机请求具有布置在故障计算机中的分布式数据的副本的计算机重新执行该作业。
    • 9. 发明申请
    • COMPUTER SYSTEM AND METHOD OF EXECUTING APPLICATION PROGRAM
    • 计算机系统和执行应用程序的方法
    • US20110225215A1
    • 2011-09-15
    • US12796313
    • 2010-06-08
    • TOSHIYUKI UKAITsuneo Iida
    • TOSHIYUKI UKAITsuneo Iida
    • G06F12/00G06F12/02G06F17/30
    • G06F16/1827
    • It is provided a computer system comprising a storage device storing a file, application computers and a management computer for executing a management program. The management computer manages fragmentation definition information indicating a manner of allocation of data of the file and file management information for managing the state of allocation of the data of the file, and allocates the data of the file stored in the storage device to a distributed memory storage in accordance with the fragmentation definition information. The application computers executes an application program and an access management program. The application computers, by executing the access management program, receives an access to data of the file from the application program, obtains the file management information about the file to be accessed from the management program, and accesses the data allocated to the distributed memory storage on the basis of the file management information.
    • 提供一种包括存储文件的存储装置,应用计算机和用于执行管理程序的管理计算机的计算机系统。 管理计算机管理指示文件数据分配方式的分段定义信息和用于管理文件数据分配状态的文件管理信息,并将存储在存储装置中的文件的数据分配给分布式存储器 根据分段定义信息进行存储。 应用程序计算机执行应用程序和访问管理程序。 应用计算机通过执行访问管理程序从应用程序接收对文件的数据的访问,从管理程序获取关于要访问的文件的文件管理信息,并访问分配给分布式存储器存储器的数据 在文件管理信息的基础上。
    • 10. 发明申请
    • Hot standby server system
    • 热备份服务器系统
    • US20080301777A1
    • 2008-12-04
    • US12219957
    • 2008-07-31
    • Masaya IchikawaHideaki SampeiToshiyuki UkaiTakaaki HarunaKenta NinoseYuzuru Maya
    • Masaya IchikawaHideaki SampeiToshiyuki UkaiTakaaki HarunaKenta NinoseYuzuru Maya
    • G06F21/20
    • G06F11/2046G06F11/2038
    • A server system has servers that can be operated through switching as a primary system and a standby system, and a shared disk unit for storing data accessed by the servers. Each of the servers has a driver that acquires information on a configuration inside the shared disk unit after starting of the system. The driver sets the shared disk unit in an active state in which an access request can be sent to the shared disk unit. Access control determines whether the access request issued by an application should be sent on the basis of a management table indicating inhibited types of access requests for each access destination. The access control sends the access request to the driver when the access request is not inhibited for an access destination of the access request. By this arrangement, hot standby switching processing can be performed at high speed.
    • 服务器系统具有可以通过作为主系统和备用系统的切换操作的服务器,以及用于存储由服务器访问的数据的共享磁盘单元。 每个服务器都有一个驱动程序,可以在系统启动后获取有关共享磁盘单元内部配置的信息。 驱动程序将共享磁盘单元设置为可以将访问请求发送到共享磁盘单元的活动状态。 访问控制确定是否应当根据指示每个访问目的地的禁止类型的访问请求的管理表来发送由应用发出的访问请求。 当访问请求的访问目的地不被禁止时,访问控制向该驱动器发送访问请求。 通过这种布置,可以高速进行热备用切换处理。