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    • 74. 发明授权
    • Storage system having a plurality of interfaces
    • 存储系统具有多个接口
    • US07191287B2
    • 2007-03-13
    • US11517387
    • 2006-09-08
    • Yusuke NonakaNaoto MatsunamiIkuya YagisawaAkira Nishimoto
    • Yusuke NonakaNaoto MatsunamiIkuya YagisawaAkira Nishimoto
    • G06F12/00
    • G06F3/0661G06F3/0614G06F3/0626G06F3/0658G06F3/0659G06F3/067G06F12/0866
    • A hybrid-type storage system having both SAN and NAS interfaces can be implemented by simple hardware capable of carrying out a SAN function independently of a NAS function and a NAS load. To be more specific, a controller of the storage system comprises a NAS controller for accepting an I/O command issued for a file unit and a SAN controller for accepting an I/O command issued for a block unit. The NAS controller converts an I/O command issued for a file unit into an I/O command issued for a block unit, and transfers the I/O command issued for a block unit to the SAN controller. The SAN controller makes an access to data stored in a disk apparatus in accordance with an I/O command received from the SAN or from the NAS controller as a command issued for a block unit. The NAS and SAN controllers are capable of operating independently of each other.
    • 具有SAN和NAS接口的混合型存储系统可以通过独立于NAS功能和NAS负载进行SAN功能的简单硬件实现。 更具体地说,存储系统的控制器包括用于接受为文件单元发出的I / O命令的NAS控制器和用于接受为块单元发出的I / O命令的SAN控制器。 NAS控制器将为文件单元发出的I / O命令转换为为块单元发出的I / O命令,并将块单元发出的I / O命令传输到SAN控制器。 SAN控制器根据从SAN或从NAS控制器接收的I / O命令访问存储在磁盘设备中的数据,作为为块单元发出的命令。 NAS和SAN控制器能够独立运行。
    • 77. 发明授权
    • Storage system for increased cache reliability via reading redundant disks into cache
    • 存储系统通过将冗余磁盘读入缓存来提高缓存的可靠性
    • US07139934B2
    • 2006-11-21
    • US10857112
    • 2004-05-28
    • Yutaka NakagawaAkira NishimotoNaoto Matsunami
    • Yutaka NakagawaAkira NishimotoNaoto Matsunami
    • G06F11/00
    • G06F11/1084G06F11/1088
    • A storage system includes a group of storage devices which include back-up devices configured to assure appropriate response time. When a data request from a host computer arrives, and the number of failed devices has changed as shown by a device state management table, a determination is made regarding the number of devices from which to read data. This determination is made based on an indication of redundancy which indicates how many of the disk devices are allowed to be in a failed state at the time of data reading. Typically, the indication of redundancy is determined by the sum of the number of failed devices and a predetermined number. The determined number of devices are selected in accordance with a selection factor, and a selection result is written into a disk management table. Then, the reading process is executed with respect to the target disk devices.
    • 存储系统包括一组存储设备,其包括被配置为确保适当的响应时间的备份设备。 当来自主计算机的数据请求到达并且设备状态管理表所示的故障设备的数量已经改变时,确定从其读取数据的设备的数量。 该确定是基于指示冗余的指示进行的,其指示在数据读取时允许多少磁盘设备处于故障状态。 通常,冗余的指示由故障设备的数量和预定数量的总和确定。 根据选择因素选择确定的设备数量,并将选择结果写入盘管理表。 然后,相对于目标盘装置执行读取处理。
    • 78. 发明授权
    • Storage capable of cache assignment modification
    • 存储能够进行缓存分配修改
    • US07136963B2
    • 2006-11-14
    • US10863426
    • 2004-06-07
    • Junji OgawaNaoto MatsunamiAkira NishimotoYoichi Mizuno
    • Junji OgawaNaoto MatsunamiAkira NishimotoYoichi Mizuno
    • G06F12/00
    • G06F12/0866
    • To provide a storage system which enables usage of a greater volume of cache than that of a cache memory provided to a disk array control unit, including a first disk array control unit, a second disk array control unit, a plurality of disks, and a disk array control unit communication path between a first data transfer control unit and a second data transfer control unit, wherein the first data transfer control unit selectively sets either a first path through a first host input/output control unit, the first data transfer control unit, and a first disk input/output control unit, or a second path through the first host input/output control unit, the first data transfer control unit, the disk array control unit communication path, the second data transfer control unit, and a second disk input/output control unit, and then processes a data input/output request from a host.
    • 提供一种存储系统,其使得能够使用比提供给磁盘阵列控制单元的高速缓冲存储器更大的高速缓冲存储系统,包括第一磁盘阵列控制单元,第二磁盘阵列控制单元,多个磁盘和 第一数据传送控制单元和第二数据传送控制单元之间的盘阵列控制单元通信路径,其中第一数据传送控制单元选择性地设置通过第一主机输入/输出控制单元的第一路径,第一数据传送控制单元 ,以及第一盘输入/输出控制单元,或通过第一主机输入/输出控制单元的第二路径,第一数据传送控制单元,盘阵列控制单元通信路径,第二数据传送控制单元和第二 磁盘输入/输出控制单元,然后处理来自主机的数据输入/输出请求。