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    • 2. 发明授权
    • Storage apparatus and method of managing data storage area
    • 存储设备和管理数据存储区域的方法
    • US08108595B2
    • 2012-01-31
    • US13193130
    • 2011-07-28
    • Akihiko ArakiYoshiki KanoSadahiro SugimotoYusuke Nonaka
    • Akihiko ArakiYoshiki KanoSadahiro SugimotoYusuke Nonaka
    • G06F12/00
    • G06F12/0246G06F2212/1036G06F2212/7202G06F2212/7211G11C2211/5641
    • To extend endurance and reduce bit cost, a method and a storage apparatus are provided, which storage apparatus includes a controller and a semiconductor storage media that includes a first storage device and a second storage device having an upper limit of an erase count of data smaller than the first storage device. Area conversion information includes correspondence of a first address to be specified as a data storage destination and a second address of an area in which data is to be stored. A rewrite frequency of stored data is recorded for each area. The controller selects an area corresponding to the first address, determines whether or not the rewrite frequency of the selected area is equal to or larger than a first threshold value, when the rewrite frequency is equal to or larger than the threshold value, selects an area to be provided by the first storage device, and when the rewrite frequency is smaller than the threshold value, selects an area to be provided by the second storage device and maps the address of the selected area to the first address.
    • 为了延长耐久性和降低比特成本,提供了一种方法和存储装置,该存储装置包括控制器和半导体存储介质,该半导体存储介质包括第一存储装置和第二存储装置,其具有较小数据的擦除次数的上限 比第一个存储设备。 区域转换信息包括要指定为数据存储目的地的第一地址和要存储数据的区域的第二地址的对应关系。 记录每个区域的存储数据的重写频率。 控制器选择对应于第一地址的区域,确定所选区域的重写频率是否等于或大于第一阈值,当重写频率等于或大于阈值时,选择一个区域 由第一存储装置提供,并且当重写频率小于阈值时,选择由第二存储装置提供的区域,并将所选区域的地址映射到第一地址。
    • 4. 发明授权
    • Method and apparatus for managing virtual ports on storage systems
    • 用于管理存储系统上的虚拟端口的方法和装置
    • US07836332B2
    • 2010-11-16
    • US11826717
    • 2007-07-18
    • Junichi HaraYoshiki Kano
    • Junichi HaraYoshiki Kano
    • G06F11/00
    • G06F3/0664G06F3/0607G06F3/067G06F9/4856G06F9/505G06F9/5077
    • A storage system is configured to create and manage virtual ports on physical ports. The storage system can transfer associations between virtual ports and physical ports when a failure occurs in a physical port or a link connected to the physical port so that a host can access volumes under the virtual ports through another physical port. The storage system can also change associations between virtual ports and physical ports by taking into account the relative loads on the physical ports. When a virtual machine is migrated from one host computer to another, the loads on the physical ports in the storage system can be used to determine whether load balancing should take place. Additionally, the storage system can transfer virtual ports to a remote storage system that will take over the virtual ports, so that a virtual machine can be migrated to remote location.
    • 存储系统配置为在物理端口上创建和管理虚拟端口。 当物理端口或连接到物理端口的链路发生故障时,存储系统可以传输虚拟端口和物理端口之间的关联,以便主机可以通过另一物理端口访问虚拟端口下的卷。 存储系统还可以通过考虑物理端口上的相对负载来改变虚拟端口和物理端口之间的关联。 当虚拟机从一台主机迁移到另一台主机时,可以使用存储系统物理端口上的负载来确定是否应进行负载平衡。 此外,存储系统可以将虚拟端口传输到将接管虚拟端口的远程存储系统,从而将虚拟机迁移到远程位置。
    • 6. 发明申请
    • Storage Apparatus and Method of Managing Data Storage Area
    • 存储设备和数据存储区管理方法
    • US20100115183A1
    • 2010-05-06
    • US12338138
    • 2008-12-18
    • Akihiko ARAKIYoshiki KanoSadahiro SugimotoYusuke Nonaka
    • Akihiko ARAKIYoshiki KanoSadahiro SugimotoYusuke Nonaka
    • G06F12/12G06F12/06
    • G06F12/0246G06F2212/1036G06F2212/7202G06F2212/7211G11C2211/5641
    • Disclosed is a storage apparatus that extends endurance and reduces bit cost. A storage apparatus includes a controller and a semiconductor storage media that has a plurality of storage devices. The plurality of storage devices include a first storage device and a second storage device having an upper limit of an erase count of data smaller than that of the first storage device. Area conversion information includes correspondence of a first address to be specified as a data storage destination and a second address of an area in which data is to be stored. A rewrite frequency of stored data is recorded for each area. The controller selects an area corresponding to the first address, determines whether or not the rewrite frequency of the selected area is equal to or larger than a first threshold value, when the rewrite frequency is equal to or larger than the threshold value, selects an area to be provided by the first storage device, and when the rewrite frequency is smaller than the threshold value, selects an area to be provided by the second storage device and maps the address of the selected area to the first address.
    • 公开了一种延长耐用性并降低钻头成本的存储装置。 存储装置包括具有多个存储装置的控制器和半导体存储介质。 多个存储装置包括第一存储装置和具有比第一存储装置小的数据的擦除次数的上限的第二存储装置。 区域转换信息包括要指定为数据存储目的地的第一地址和要存储数据的区域的第二地址的对应关系。 记录每个区域的存储数据的重写频率。 控制器选择对应于第一地址的区域,确定所选区域的重写频率是否等于或大于第一阈值,当重写频率等于或大于阈值时,选择一个区域 由第一存储装置提供,并且当重写频率小于阈值时,选择由第二存储装置提供的区域并将所选区域的地址映射到第一地址。
    • 10. 发明授权
    • System and method for managing disk space in a thin-provisioned storage subsystem
    • 用于管理精简配置的存储子系统中的磁盘空间的系统和方法
    • US07509454B2
    • 2009-03-24
    • US11723569
    • 2007-03-21
    • Yoshiki Kano
    • Yoshiki Kano
    • G06F12/00
    • G06F3/0665G06F3/0608G06F3/0647G06F3/067
    • A system and method for managing disk space in a thin-provisioned storage subsystem. If a number of free segments in a free segment pool at a storage subsystem is detected as below a desired minimum, one or more of the following is performed: selecting and adding logical devices (LDEVs) from an internal storage as free segments to the free segment pool, transitioning LDEVs to a virtual device (VDEV), and/or selecting and adding LDEVs from an external storage as free segments to the free segment pool. The transitioning includes identifying partially used or completely used LDEVs and transitioning these to the VDEV. Data migration may also occur by: selecting a source segment at a VDEV for migration, reading data from the source segment, writing the data to a target segment, the target segment being a free segment from the free segment pool, and assigning the target segment to the VDEV.
    • 用于管理精简供应的存储子系统中的磁盘空间的系统和方法。 如果存储子系统中的空闲段池中的多个空闲段被检测为低于期望的最小值,则执行以下中的一个或多个:从内部存储器中选择和添加逻辑设备(LDEV)作为空闲段到自由 分段池,将LDEV转换到虚拟设备(VDEV),和/或从外部存储器中选择并将LDEV从空闲段添加到可用段池中。 转换包括识别部分使用或完全使用的LDEV,并将其转换到VDEV。 数据迁移还可以通过以下方式发生:在VDEV上选择用于迁移的源段,从源段读取数据,将数据写入目标段,目标段是空闲段池中的空闲段,以及分配目标段 到VDEV。