公开(公告)号：US20130232292A1

公开(公告)日：2013-09-05

申请号：US13410089

申请日：2012-03-01

申请人： Zvonimir Z. Bandic ,  Cyril Guyot ,  Tomohiro Harayama ,  Hitoshi Kamei ,  Takaki Nakamura ,  Timothy Tsai

发明人： Zvonimir Z. Bandic ,  Cyril Guyot ,  Tomohiro Harayama ,  Hitoshi Kamei ,  Takaki Nakamura ,  Timothy Tsai

IPC分类号： G06F12/00

CPC分类号： G06F12/0246 ,  G06F3/061 ,  G06F3/0611 ,  G06F3/0619 ,  G06F3/0632 ,  G06F3/0634 ,  G06F3/068 ,  G06F3/0689 ,  G11B5/012

摘要： A method and a storage system are provided for implementing a sustained large block random write performance mechanism for shingled magnetic recording (SMR) drives in a redundant array of inexpensive disks (RAID). A Solid State Drive (SSD) is provided with the SMR drives in the RAID. The SSD is used in a hot spare mode, which is activated when a large block random-write event is identified for a SMR drive in the RAID. In the hot spare mode, the SSD temporarily receives new incoming writes for the identified SMR drive. Then the identified SMR drive is updated from the SSD to restore the state of the identified SMR drive, and operations continue with normal writing only using the SMR drives in the RAID.

摘要翻译： 提供了一种方法和存储系统，用于实现用于廉价磁盘（RAID）的冗余阵列中的带状磁记录（SMR）驱动器的持续大块随机写入性能机制。 固态驱动器（SSD）随RAID中的SMR驱动器一起提供。 SSD用于热备份模式，当为RAID中的SMR驱动器标识大块随机写入事件时，SSD将被激活。 在热备用模式下，SSD临时接收所识别的SMR驱动器的新进入写入。 然后，从SSD更新所识别的SMR驱动器，以恢复所识别的SMR驱动器的状态，并且只有使用RAID中的SMR驱动器才能正常进行操作。

公开(公告)号：US08504830B2

公开(公告)日：2013-08-06

申请号：US12545138

申请日：2009-08-21

申请人： Yohsuke Ishii ,  Takaki Nakamura ,  Atsuya Kumagai ,  Kazuyoshi Toyama

发明人： Yohsuke Ishii ,  Takaki Nakamura ,  Atsuya Kumagai ,  Kazuyoshi Toyama

IPC分类号： H04L29/00

CPC分类号： G06F11/1448 ,  G06F11/1451 ,  G06F11/1453 ,  G06F11/1464

摘要： Erroneous deletion of data due to a collision of digest information during data de-duplication using digest information is prevented. When backup data is stored on a backup server 1100, digest information of the backup data is generated and stored in a digest information management table 4200. In addition, when a backup data storage request is made to the backup server 1100, a digest information verification control sub-program 1127 generates digest information of data to be backed up, and performs verification against the digest information of the backed up data already stored on the backup server 1100. If, by this verification, it is found that backed up data having the same digest information is already stored, de-duplication is realized by reusing the existing backed up data without newly storing the data to be backed up.

摘要翻译： 防止了使用摘要信息在数据重复数据删除期间由于摘要信息的冲突而导致的数据错误删除。 当备份数据存储在备份服务器1100上时，生成备份数据的摘要信息并将其存储在摘要信息管理表4200中。此外，当对备份服务器1100进行备份数据存储请求时，进行摘要信息验证 控制子程序1127生成要备份的数据的摘要信息，并对已经存储在备份服务器1100上的备份数据的摘要信息执行验证。如果通过该验证发现备份了具有 已经存储了相同的摘要信息，通过重新使用现有备份数据而不重新存储要备份的数据来实现重复数据删除。

公开(公告)号：US20130138705A1

公开(公告)日：2013-05-30

申请号：US13377060

申请日：2011-11-28

申请人： Masakuni Agetsuma ,  Takaki Nakamura ,  Atsushi Sutoh

发明人： Masakuni Agetsuma ,  Takaki Nakamura ,  Atsushi Sutoh

IPC分类号： G06F17/30

CPC分类号： G06F11/1451 ,  G06F3/0643 ,  G06F3/0683 ,  G06F3/0685

摘要： A control unit of a storage system controller receives an access command to a first file specifying a first access position in the first file. A storage apparatus stores management information of the first file and management information of each of subfiles obtained by dividing the first file. The management information of the first file contains information associating a data position in the first file and management information of a subfile containning data at the data position. The management information of each of the subfiles contains information associating a data position in the corresponding subfile and a physical storage position. The control unit references the management information of the first file to identify the management information of the subfile containning the data at the first access position, and references the management information of the identified subfile to identify a physical storage position of the first access position.

摘要翻译： 存储系统控制器的控制单元接收指定第一文件中的第一访问位置的第一文件的访问命令。 存储装置存储通过划分第一文件获得的每个子文件的第一文件的管理信息和管理信息。 第一文件的管理信息包含关联第一文件中的数据位置和在数据位置处包含数据的子文件的管理信息的信息。 每个子文件的管理信息包含将相应子文件中的数据位置与物理存储位置相关联的信息。 控制单元引用第一文件的管理信息，以识别在第一访问位置处包含数据的子文件的管理信息，并且引用所识别的子文件的管理信息以识别第一访问位置的物理存储位置。

公开(公告)号：US08271753B2

公开(公告)日：2012-09-18

申请号：US12212049

申请日：2008-09-17

申请人： Jun Nemoto ,  Atsushi Sutoh ,  Takaki Nakamura ,  Yoji Nakatani

发明人： Jun Nemoto ,  Atsushi Sutoh ,  Takaki Nakamura ,  Yoji Nakatani

IPC分类号： G06F12/00

CPC分类号： G06F3/065 ,  G06F3/0614 ,  G06F3/0683 ,  G06F11/1451 ,  G06F2201/84

摘要： Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an Nth point-in-time snapshot, which constitutes the latest point-in-time snapshot, is acquired to a memory module. The memory module stores two or more pieces of difference information. The two or more pieces of difference information comprise difference information that shows the difference between a first point-in-time snapshot and any snapshot other than the first point-in-time snapshot of N snapshots. Copy difference information, which is information that shows the difference between the first point-in-time snapshot and a specified snapshot from among N snapshots, and which is used in copying the specified snapshot, is created on the basis of the two or more pieces of difference information.

摘要翻译： 从已经被复制的第一时间点快照到构成最新时刻快照的第N个时刻快照的两个快照之间的差异信息被获取到存储器模块。 存储器模块存储两个或更多个差异信息。 两条或更多条差异信息包括差异信息，其显示第一时间点快照与N个快照的第一时间点快照之外的任何快照之间的差异。 复制差异信息，它是显示N个快照中第一个时间点快照和指定快照之间的区别的信息，以及复制指定快照时使用的差异信息，是基于两个或多个部分 的差异信息。

公开(公告)号：US08161259B2

公开(公告)日：2012-04-17

申请号：US13118105

申请日：2011-05-27

申请人： Takaki Nakamura

发明人： Takaki Nakamura

IPC分类号： G06F12/00

CPC分类号： G06F3/0608 ,  G06F3/0611 ,  G06F3/064 ,  G06F3/0689

摘要： Provided is a storage system capable of saving actually used physical storage areas and of achieving a high speed in write processing. There is disclosed a computer system including a server and a storage system, in which physical storage areas of a disk drive are managed for each one or more physical blocks of predetermined sizes, and allocation of one or more physical blocks to a plurality of logical blocks of predetermined sizes is managed, and the storage system stores data written in a first logical block in a first physical block allocated to the first logical block and allocates the first physical block to a second logical block where the same data as the data stored in the first physical block is to be written.

摘要翻译： 提供了能够节省实际使用的物理存储区域并且在写入处理中实现高速度的存储系统。 公开了一种包括服务器和存储系统的计算机系统，其中为每个一个或多个预定大小的物理块管理磁盘驱动器的物理存储区域，以及将一个或多个物理块分配给多个逻辑块 并且存储系统将写入第一逻辑块的数据存储在分配给第一逻辑块的第一物理块中，并将第一物理块分配给与存储在第一逻辑块中的数据相同的数据的第二逻辑块 第一个物理块是写的。

公开(公告)号：US07958328B2

公开(公告)日：2011-06-07

申请号：US12723315

申请日：2010-03-12

申请人： Takaki Nakamura

发明人： Takaki Nakamura

IPC分类号： G06F12/00

CPC分类号： G06F3/0608 ,  G06F3/0611 ,  G06F3/064 ,  G06F3/0689

摘要： Provided is a storage system capable of saving actually used physical storage areas and of achieving a high speed in write processing. There is disclosed a computer system including a server and a storage system, in which physical storage areas of a disk drive are managed for each one or more physical blocks of predetermined sizes, and allocation of one or more physical blocks to a plurality of logical blocks of predetermined sizes is managed, and the storage system stores data written in a first logical block in a first physical block allocated to the first logical block and allocates the first physical block to a second logical block where the same data as the data stored in the first physical block is to be written.

摘要翻译： 提供了能够节省实际使用的物理存储区域并且在写入处理中实现高速度的存储系统。 公开了一种包括服务器和存储系统的计算机系统，其中为每个一个或多个预定大小的物理块管理磁盘驱动器的物理存储区域，以及将一个或多个物理块分配给多个逻辑块 并且存储系统将写入第一逻辑块的数据存储在分配给第一逻辑块的第一物理块中，并将第一物理块分配给与存储在第一逻辑块中的数据相同的数据的第二逻辑块 第一个物理块是写的。

公开(公告)号：US07620670B2

公开(公告)日：2009-11-17

申请号：US10919442

申请日：2004-08-17

申请人： Seisuke Tokuda ,  Takaki Nakamura

发明人： Seisuke Tokuda ,  Takaki Nakamura

IPC分类号： G06F12/00 ,  G06F17/30 ,  G06F13/00

CPC分类号： G06F17/30067 ,  Y10S707/99956

摘要： At least two devices having different characteristics are provided as one file system, and the file system stores a file in a device according to the file purpose. In file system operation, a device characteristic acquiring unit acquires characteristic information of the respective devices by using a device characteristic database, a device characteristic acquiring interface, and stores the information in the device characteristic holding. In file operation for preparing file management information in file storing process, a file purpose interpreting unit interprets the purpose and attribute of the file and registers a characteristic flag representing the characteristic of the file in the file management information. In file operation for actually writing a file, a storage device decision unit decides a file storage location device on the characteristic flag in the file management information and information of the device characteristic holding unit to perform a device free region securing process.

摘要翻译： 具有不同特征的至少两个设备被提供为一个文件系统，并且文件系统根据文件目的将文件存储在设备中。 在文件系统操作中，设备特征获取单元通过使用设备特征数据库，设备特征获取接口来获取各个设备的特性信息，并将信息存储在设备特征保持中。 在用于在文件存储过程中准备文件管理信息的文件操作中，文件目的解释单元解释文件的用途和属性，并在文件管理信息中注册表示文件特性的特征标志。 在用于实际写入文件的文件操作中，存储装置决定单元根据文件管理信息中的特征标志和设备特征保持单元的信息来确定文件存储位置设备，以执行无设备自由区域确保处理。

公开(公告)号：US20090089413A1

公开(公告)日：2009-04-02

申请号：US12013584

申请日：2008-01-14

申请人： Hitoshi KAMEI ,  Takaki Nakamura

发明人： Hitoshi KAMEI ,  Takaki Nakamura

IPC分类号： G06F15/173

CPC分类号： H04L61/1582

摘要： According to this invention, a computer system which provides a client node with a file system mounted into a virtual namespace, comprising: at least one file server which provides the file system; a root node which mounts the file system provided by the file server into the virtual namespace; and a network which couples the file server and the root node. The root node has an interface coupled to the network, a processor coupled to the interface, and a memory coupled to the processor. The root node is configured to: obtain access information set to a directory above a point in the virtual namespace at which the file system is to be mounted when mounting the file system into the virtual namespace; judge whether the obtained access information is to be inherited; and set, to the file system to be mounted, the obtained access information that is to be inherited.

摘要翻译： 根据本发明，一种为客户端节点提供安装在虚拟命名空间中的文件系统的计算机系统，包括：提供文件系统的至少一个文件服务器; 将文件服务器提供的文件系统安装到虚拟命名空间中的根节点; 以及耦合文件服务器和根节点的网络。 根节点具有耦合到网络的接口，耦合到接口的处理器和耦合到处理器的存储器。 根节点被配置为：将文件系统安装到虚拟命名空间中时，获取设置到虚拟命名空间中要安装文件系统的虚拟命名空间上方的目录的访问信息; 判断获取的访问信息是否被继承; 并将要被挂载的文件系统设置为获得的要被继承的访问信息。

公开(公告)号：US20090063556A1

公开(公告)日：2009-03-05

申请号：US12020770

申请日：2008-01-28

申请人： Jun Nemoto ,  Takaki Nakamura

发明人： Jun Nemoto ,  Takaki Nakamura

IPC分类号： G06F17/30

CPC分类号： G06F16/119

摘要： An object ID comprises share information denoting a share unit, which is a logical export unit, and which includes one or more objects. Migration determination information denoting whether or not migration has been completed for each share unit is provided. A root node maintains the object ID in the migration destination of a migrated file, and updates migration determination information to information denoting that the share unit comprising this file is a migrated share unit. The root node, upon receiving request data having the object ID, determines, by referencing the above-mentioned migration determination information, whether or not the share unit denoted by the share information inside this object ID is a migrated share unit, and if this unit is a migrated share unit and if the file identified from this object ID is a migrated file, transfers the request data having the migration-destination object ID corresponding to this file to the migration-destination node.

摘要翻译： 对象ID包括表示作为逻辑导出单元的共享单元的共享信息，并且包括一个或多个对象。 提供表示是否已经为每个共享单元完成迁移的迁移确定信息。 根节点将对象ID维护在已迁移文件的迁移目标中，并将迁移确定信息更新为表示包含该文件的共享单元是迁移的共享单元的信息。 根节点在接收到具有对象ID的请求数据时，通过参考上述迁移确定信息来确定由该对象ID内的共享信息表示的共享单元是否是迁移的共享单元，并且如果该单元 是迁移的共享单元，并且如果从该对象ID识别的文件是迁移文件，则将具有与该文件相对应的迁移目的地对象ID的请求数据传送到迁移目的地节点。

公开(公告)号：US20070220225A1

公开(公告)日：2007-09-20

申请号：US11434319

申请日：2006-05-10

申请人： Takaki Nakamura ,  Atsushi Sutoh

发明人： Takaki Nakamura ,  Atsushi Sutoh

IPC分类号： G06F12/16

CPC分类号： G06F3/065 ,  G06F3/0608 ,  G06F3/0611 ,  G06F3/0613 ,  G06F3/0631 ,  G06F3/067 ,  G06F11/1435 ,  G06F2201/84 ,  Y10S707/99953 ,  Y10S707/99955

摘要： To improve snapshot performance and copying performance on a block device level in a capacity of an allocation-on-use volume. Provided is a storage system coupled to a network includes one or more volumes constituted of a plurality of blocks. The plurality of blocks include a first block and a second block, and a physical storage area is allocated to at least one of the plurality of blocks. When it is judged that the physical storage area has not been allocated to the target first block of a received writing request, the storage system writes data to be written by the writing request in the first block without copying data stored in the first block to the second block.

摘要翻译： 以分配使用卷的容量来提高快照性能并在块设备级复制性能。 提供耦合到网络的存储系统包括由多个块构成的一个或多个卷。 多个块包括第一块和第二块，并且物理存储区域被分配给多个块中的至少一个块。 当判定物理存储区域尚未被分配给接收到的写入请求的目标第一块时，存储系统将写入请求写入的数据写入第一块而不将第一块中存储的数据复制到 第二块。