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    • 51. 发明申请
    • BACKUP DATA ERASURE METHOD
    • 备份数据删除方法
    • US20090063797A1
    • 2009-03-05
    • US12030545
    • 2008-02-13
    • Yuichi TaguchiMasayuki YamamotoHiroshi NasuNoriko Nakajima
    • Yuichi TaguchiMasayuki YamamotoHiroshi NasuNoriko Nakajima
    • G06F12/00
    • G06F21/80G06F11/1448G06F11/1456G06F11/1458G06F12/0866G06F21/6218G06F2221/2143
    • A computer system comprises a storage subsystem, a host computer and a management computer, and stores catalogue information containing correspondence between a first volume for data reading or writing and a second volume for storing a copy of the data stored in the first volume. The management computer requests the storage subsystem to erase the data stored in the first volume upon reception of an erasure request of the data stored in the first volume. The storage subsystem erases the data stored in the first volume. The management computer specifies a second volume for storing the copy of the data stored in the first volume based on the catalogue information. The storage subsystem erases data stored in the specified second volume. Thus, security risks are reduced by erasing data regarding the data when the data stored in the volume is erased.
    • 计算机系统包括存储子系统,主计算机和管理计算机,并且存储包含用于数据读取或写入的第一卷之间的对应关系的目录信息和用于存储存储在第一卷中的数据的副本的第二卷。 管理计算机在接收到存储在第一卷中的数据的擦除请求时请求存储子系统擦除存储在第一卷中的数据。 存储子系统擦除存储在第一卷中的数据。 管理计算机基于目录信息指定用于存储存储在第一卷中的数据的副本的第二卷。 存储子系统擦除存储在指定的第二卷中的数据。 因此,当存储在卷中的数据被擦除时,通过擦除关于数据的数据来减少安全风险。
    • 53. 发明授权
    • Storage resource management method for storage system
    • 存储系统的存储资源管理方法
    • US07418546B2
    • 2008-08-26
    • US11259958
    • 2005-10-26
    • Yuichi TaguchiFumi MiyazakiMasayuki Yamamoto
    • Yuichi TaguchiFumi MiyazakiMasayuki Yamamoto
    • G06F12/00
    • G06F3/0665G06F3/0605G06F3/0644G06F3/0683Y10S707/99939Y10S707/99953
    • Provided is a computer system including a storage subsystem, a host computer, and a management computer for managing the storage subsystem and the host computer. The storage subsystem manages a storage extent by a group unit and creates storage extent configuration information. The management computer stores group management information, obtains the storage extent configuration information, calculates an assigned capacity for each group based on the obtained storage extent configuration information, forecasts a capacity to be assigned in the future for each group based on the calculated assigned capacity, calculates a protection term expired capacity for each group based on the group management information and the storage extent configuration information, and outputs the assigned capacity, the capacity to be assigned in the future, and the protection term expired capacity. Thus, the storage extent of the storage subsystem can easily be managed.
    • 提供了一种包括存储子系统,主计算机和用于管理存储子系统和主计算机的管理计算机的计算机系统。 存储子系统通过组单元管理存储扩展,并创建存储扩展配置信息。 管理计算机存储组管理信息,获取存储盘区配置信息,基于所获得的存储盘区配置信息计算每个组的分配容量,基于计算出的分配容量预测将来对每个组进行分配的容量, 根据组管理信息和存储范围配置信息,计算出各组的保护期限过期容量,并输出分配容量,将来分配的容量和保护期限过期容量。 因此,可以容易地管理存储子系统的存储范围。
    • 60. 发明申请
    • Logical volume management method and logical volume management program
    • 逻辑卷管理方法和逻辑卷管理程序
    • US20080065815A1
    • 2008-03-13
    • US11585111
    • 2006-10-24
    • Hiroshi NasuMasayuki YamamotoYuichi Taguchi
    • Hiroshi NasuMasayuki YamamotoYuichi Taguchi
    • G06F12/00
    • G06F3/0665G06F3/061G06F3/0616G06F3/064G06F3/0679G06F3/0688
    • There is provided a logical volume management method for storage system. When a logical volume is created on a flash memory drive, a management computer allocates logical volume while flash memory chip border of flash memory drive is taken into account. Specifically, a table for managing a correlation between each parity group and the flash memory chip of the flash memory drive is obtained and the logical volume is allocated in such a manner that a flash memory chip is not shared by a plurality of logical volumes. When complete erasing of logical volume data is performed, the management computer specifies a flash memory chip on which complete data erasing is to be performed, and the storage system completely erases data exclusively on the chip of interest with a use of a function of completely erasing data at a time by chip unit of the flash memory chip (chip erasing).
    • 为存储系统提供了逻辑卷管理方法。 当在闪存驱动器上创建逻辑卷时,管理计算机分配逻辑卷,同时考虑闪存驱动器的闪存芯片边框。 具体地,获得用于管理闪存驱动器的每个奇偶校验组和闪速存储器芯片之间的相关性的表,并且以使得闪存芯片不被多个逻辑卷共享的方式分配逻辑卷。 当执行逻辑卷数据的完全擦除时,管理计算机指定要执行完整数据擦除的闪存芯片,并且存储系统使用完全擦除的功能完全擦除感兴趣的芯片上的数据 闪存芯片的芯片单元一次的数据(芯片擦除)。