公开(公告)号：US20070101182A1

公开(公告)日：2007-05-03

申请号：US11376183

申请日：2006-03-16

申请人： Hideo Takahashi ,  Norihide Kubota ,  Hiroaki Ochi ,  Yoshihito Konta ,  Yasutake Sato ,  Tsukasa Makino ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Shinya Mochizuki

发明人： Hideo Takahashi ,  Norihide Kubota ,  Hiroaki Ochi ,  Yoshihito Konta ,  Yasutake Sato ,  Tsukasa Makino ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Shinya Mochizuki

IPC分类号： G06F11/00

CPC分类号： G06F11/0727 ,  G06F11/0763 ,  G06F2211/104

摘要： A storage system has a plurality of disk storage devices and a controller for controlling the plurality of disk storage devices, and diagnosis of a write miss to a disk of the disk storage device. The controller for controlling the plurality of disk storage devices attaches an ID to write data, and after write access to the disk drive, the controller reads the write data from the disk drive, and compares the ID of the read data and the attached ID. The controller updates the ID for each write command. Therefore the old write data and the new write data can be identified, accurate diagnosis is possible, and the failure of an individual disk drive can be detected immediately.

摘要翻译： 存储系统具有多个盘存储装置和用于控制多个盘存储装置的控制器，以及对盘存储装置的盘的写入错误的诊断。 用于控制多个盘存储装置的控制器附加写入数据的ID，并且在对磁盘驱动器的写入访问之后，控制器从盘驱动器读取写入数据，并且比较读取的数据的ID和附加的ID。 控制器更新每个写命令的ID。 因此，可以识别旧的写入数据和新的写入数据，可以进行准确的诊断，并且可以立即检测到单个磁盘驱动器的故障。

公开(公告)号：US08266475B2

公开(公告)日：2012-09-11

申请号：US12718405

申请日：2010-03-05

申请人： Chikashi Maeda ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi

发明人： Chikashi Maeda ,  Mikio Ito ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi

IPC分类号： G06F11/07

CPC分类号： G06F11/2094 ,  G06F11/1076 ,  G06F11/1441

摘要： A storage system includes data storage devices, spare storage devices used when a failure occurs in a data storage devices, a group management unit that divides the data storage devices into groups and implements a redundancy, a data storage device restoration unit that assigns the spare storage device as a replacement when a failure occurs, and a configuration change unit changing configuration of the group to which the data storage devices belong. The configuration change unit includes, a spare storage device securing unit that secures the spare storage device, a change processor that writes data concerning the group into the spare storage device, and a change restoration unit that performs continuation of the configuration change, or restoration of the group to a state in a start, using the data written into the spare storage device when the configuration change of the group is interrupted.

摘要翻译： 存储系统包括数据存储装置，在数据存储装置发生故障时使用的备用存储装置，将数据存储装置分割成组并进行冗余的组管理部，分配备用存储部的数据存储装置恢复部 设备作为发生故障时的替换，以及配置改变单元改变数据存储设备所属的组的配置。 配置改变单元包括：将备用存储装置固定的备用存储装置固定单元，将关于该组的数据写入备用存储装置的变更处理单元，以及进行配置变更的继续的修改恢复单元， 该组到一个状态一开始，当组的配置更改中断时，使用写入备用存储设备的数据。

公开(公告)号：US20100218038A1

公开(公告)日：2010-08-26

申请号：US12712246

申请日：2010-02-25

申请人： Kazuhiko IKEUCHI ,  Mikio Ito ,  Hidejirou Daikokuya ,  Chikashi Maeda

发明人： Kazuhiko IKEUCHI ,  Mikio Ito ,  Hidejirou Daikokuya ,  Chikashi Maeda

IPC分类号： G06F11/14 ,  G06F11/00 ,  G06F12/00 ,  G06F12/02

CPC分类号： G06F11/2082 ,  G06F11/2094

摘要： A storage control device for managing data in a storage while maintaining redundancy of the data includes a formatting management table, a formatting processing section, a recovery management table and a recovery processing section. The formatting management table manages a formatted region and an unformatted region in a management target volume. The formatting processing section executes formatting of the unformatted region in the management target volume on the basis of the formatting management table. The recovery management table retains a content of the formatting management table at a point of occurrence of a redundancy restoration event when a redundancy restoration event has occurred during formatting. The recovery processing section executes recovery of a formatted region, which had been formatted at the point of occurrence of the redundancy restoration event, on the basis of the recovery management table in parallel with the formatting.

摘要翻译： 用于在保持数据的冗余的同时管理存储器中的数据的存储控制装置包括格式化管理表，格式化处理部，恢复管理表和恢复处理部。 格式化管理表管理管理目标卷中的格式化区域和未格式化区域。 格式化处理部根据格式化管理表执行管理目标卷中的未格式化区域的格式化。 当在格式化期间发生冗余恢复事件时，恢复管理表保留在冗余恢复事件发生时的格式化管理表的内容。 恢复处理部根据与格式化并行的恢复管理表，执行在冗余恢复事件发生时被格式化的格式化区域的恢复。

公开(公告)号：US20100205372A1

公开(公告)日：2010-08-12

申请号：US12652873

申请日：2010-01-06

申请人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Chikashi Maeda

发明人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Chikashi Maeda

IPC分类号： G06F12/00 ,  G06F11/00 ,  G06F11/20

CPC分类号： G06F11/2094 ,  G06F3/0607 ,  G06F3/0632 ,  G06F3/0689

摘要： A disk array control apparatus controls a disk array having a redundant configuration with two or more disk devices and a spare disk provided for lack of redundancy in the disk array. And the disk array control apparatus includes a failure detecting unit for detecting the lack of redundancy in the disk array, and a rebuilding control unit for performing rebuilding processing on a dedicated spare disk device assigned to the disk array with the lack of redundancy, the dedicated spare disk being the spare disk dedicatedly assigned to the two or more disk arrays including the disk devices having a same characteristic as that of the spare disk.

摘要翻译： 磁盘阵列控制装置控制具有两个或多个磁盘装置的冗余配置的磁盘阵列和为磁盘阵列中缺少冗余而提供的备用磁盘。 并且，磁盘阵列控制装置包括用于检测磁盘阵列中的冗余性不足的故障检测单元，以及用于对缺少冗余分配给磁盘阵列的专用备用磁盘装置执行重建处理的重建控制单元， 备用磁盘是专用于分配给两个或多个磁盘阵列的备用磁盘，包括具有与备用磁盘相同特性的磁盘设备。

公开(公告)号：US07631218B2

公开(公告)日：2009-12-08

申请号：US11361583

申请日：2006-02-23

申请人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Shinya Mochizuki ,  Hideo Takahashi ,  Yoshihito Konta ,  Yasutake Sato ,  Hiroaki Ochi ,  Tsukasa Makino ,  Norihide Kubota

发明人： Hidejirou Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Shinya Mochizuki ,  Hideo Takahashi ,  Yoshihito Konta ,  Yasutake Sato ,  Hiroaki Ochi ,  Tsukasa Makino ,  Norihide Kubota

IPC分类号： G06F11/00

CPC分类号： G06F11/1076 ,  G06F11/1088 ,  G06F2211/1059

摘要： A RAID system access a physical disk according to a host I/O request, and perform Rebuild/Copy back processing, for implementing high-speed Rebuild/Copy back processing without interrupting the processing of a normal I/O. When one disk device out of a plurality of disk devices constituting the RAID configuration fails, the processing size for one time of Rebuild/Copy back to reconstruct the RAID is changed according to the presence of a normal I/O managed in RAID control. When a normal I/O is present, Rebuild/Copy back can be executed without interrupting the processing of the normal I/O, and in a static state where a normal I/O is absent, a processing size larger than the size in that state can be specified so as to implement Rebuild/Copy back processing at high-speed.

摘要翻译： RAID系统根据主机I / O请求访问物理磁盘，并执行重建/复制返回处理，以实现高速重建/复制返回处理，而不会中断正常I / O的处理。 当构成RAID配置的多个磁盘装置中的一个磁盘装置出现故障时，根据在RAID控制中管理的普通I / O的存在，改变重新构建/复制一次以重构RAID的处理大小。 当存在正常的I / O时，可以执行重建/复制，而不会中断正常I / O的处理，并且在没有正常I / O的静态下，处理大小大于其中的大小 可以指定状态，以便高速实现重建/复制处理。

公开(公告)号：US08707089B2

公开(公告)日：2014-04-22

申请号：US12712246

申请日：2010-02-25

申请人： Kazuhiko Ikeuchi ,  Mikio Ito ,  Hidejirou Daikokuya ,  Chikashi Maeda

发明人： Kazuhiko Ikeuchi ,  Mikio Ito ,  Hidejirou Daikokuya ,  Chikashi Maeda

IPC分类号： G06F11/00

CPC分类号： G06F11/2082 ,  G06F11/2094

摘要： A storage control device for managing data in a storage while maintaining redundancy of the data includes a formatting management table, a formatting processing section, a recovery management table and a recovery processing section. The formatting management table manages a formatted region and an unformatted region in a management target volume. The formatting processing section executes formatting of the unformatted region in the management target volume on the basis of the formatting management table. The recovery management table retains a content of the formatting management table at a point of occurrence of a redundancy restoration event when a redundancy restoration event has occurred during formatting. The recovery processing section executes recovery of a formatted region, which had been formatted at the point of occurrence of the redundancy restoration event, on the basis of the recovery management table in parallel with the formatting.

摘要翻译： 用于在保持数据的冗余的同时管理存储器中的数据的存储控制装置包括格式化管理表，格式化处理部，恢复管理表和恢复处理部。 格式化管理表管理管理目标卷中的格式化区域和未格式化区域。 格式化处理部根据格式化管理表执行管理目标卷中的未格式化区域的格式化。 当在格式化期间发生冗余恢复事件时，恢复管理表保留在冗余恢复事件发生时的格式化管理表的内容。 恢复处理部根据与格式化并行的恢复管理表，执行在冗余恢复事件发生时被格式化的格式化区域的恢复。

公开(公告)号：US20130054913A1

公开(公告)日：2013-02-28

申请号：US13586587

申请日：2012-08-15

申请人： Chikashi MAEDA ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Takeshi Watanabe

发明人： Chikashi MAEDA ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Takeshi Watanabe

IPC分类号： G06F12/16

CPC分类号： G06F9/50 ,  G06F11/1092 ,  G06F2209/5017

摘要： A rebuild control unit splits a rebuild process into partial processes and instructs an access processing unit to execute the partial processes. In the rebuild process, data identical to data recorded in a first storage device that constitutes RLU #1 is generated based on data read from, among storage devices constituting RLU #1, storage devices other than the first storage device and written to a spare storage device included in a storage system. Each partial process includes a combination of an operation of reading data from a split range created by splitting a data readout target range into fixed-size intervals and an operation of writing data in another storage device based on the data read from the split range. In response to the instruction from the rebuild control unit to execute the multiple partial processes, the access processing unit executes the instructed partial processes in parallel.

摘要翻译： 重建控制单元将重建过程分解为部分过程，并指示访问处理单元执行部分过程。 在重建处理中，基于从构成RLU＃1的存储装置之中读取的数据，生成与记录在构成RLU＃1的第一存储装置中的数据相同的数据，而不是第一存储装置的存储装置，并写入备用存储器 设备包括在存储系统中。 每个部分处理包括从通过将数据读出目标范围分割成固定大小间隔而创建的分割范围的数据的读取操作和基于从分割范围读取的数据在另一存储装置中写入数据的操作的组合。 响应于重建控制单元执行多个部分处理的指令，访问处理单元并行地执行指示的部分处理。

公开(公告)号：US20110264949A1

公开(公告)日：2011-10-27

申请号：US12906238

申请日：2010-10-18

申请人： Kazuhiko IKEUCHI ,  Mikio Ito ,  Hidejirou Daikokuya ,  Chikashi Maeda

发明人： Kazuhiko IKEUCHI ,  Mikio Ito ,  Hidejirou Daikokuya ,  Chikashi Maeda

IPC分类号： G06F11/16

CPC分类号： G06F11/1076 ,  G06F11/108 ,  G06F2211/1057

摘要： A disk array provided with a RAID group in a Redundant Array of Inexpensive Disks (RAID) configuration with redundancy of two, the disk array includes, a data recovery technique selecting unit to select a technique for recovering data from a first failed disk to be recovered first, the technique being selected from among a plurality of techniques based on the type of storage apparatus included in the RAID group, and I/O conditions with respect to the RAID group, when failures occur in two storage apparatus in the RAID group, a data recovering unit to split recovered data from the first failed storage apparatus and writing the recovered data to two recovery storage apparatus in accordance with the data recovery technique selected by the data recovery technique selecting unit, and an aggregating unit to aggregate the recovered data onto one of the two recovery storage apparatus.

摘要翻译： 在具有冗余二的冗余磁盘冗余阵列（RAID）配置中提供有RAID组的磁盘阵列包括数据恢复技术选择单元，用于选择从第一故障磁盘恢复数据以恢复的技术 首先，当RAID组中的两个存储装置发生故障时，从基于包括在RAID组中的存储装置的类型的多种技术中选出的技术以及相对于RAID组的I / O条件， 数据恢复单元，用于从第一故障存储装置分离恢复的数据，并根据由数据恢复技术选择单元选择的数据恢复技术将恢复的数据写入两个恢复存储装置;以及聚合单元，将恢复的数据聚合到一个 的两个恢复存储装置。

公开(公告)号：US08089712B2

公开(公告)日：2012-01-03

申请号：US12320591

申请日：2009-01-29

申请人： Mikio Ito ,  Eisaku Takahashi ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

发明人： Mikio Ito ,  Eisaku Takahashi ,  Hidejirou Daikokuya ,  Kazuhiko Ikeuchi ,  Hideo Takahashi ,  Yoshihito Konta ,  Norihide Kubota

IPC分类号： G11B27/36 ,  G01R31/28

CPC分类号： G06F11/0727 ,  G06F11/076

摘要： In a RAID apparatus, an error determining processing unit determines whether an HDD is normal based on an error determining condition obtained from an amount of increase of NON MEDIUM ERROR COUNT and the number of accesses memorized on a control table, and detects the HDD with abnormal performance.

摘要翻译： 在RAID装置中，错误判定处理部基于从NON MEDIUM ERROR COUNT的增加量和存储在控制表上的访问次数获得的错误判定条件来判定HDD是否正常，并且检测出异常的HDD 性能。

公开(公告)号：US07590884B2

公开(公告)日：2009-09-15

申请号：US11237662

申请日：2005-09-29

申请人： Hidejirou Daikokuya ,  Hideo Takahashi ,  Yoshihito Konta ,  Yasutake Sato ,  Hiroaki Sato ,  Norihide Kubota ,  Masami Ikeno ,  Tadashi Hirano ,  Tsuyoshi Nakagami ,  Yuuji Noda ,  Yusuke Inai ,  Naoyoshi Toshine ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Yukihiro Yoshiya ,  Nobuyuki Kikuchi ,  Masaru Shimmitsu ,  Eisaku Takahashi

发明人： Hidejirou Daikokuya ,  Hideo Takahashi ,  Yoshihito Konta ,  Yasutake Sato ,  Hiroaki Sato ,  Norihide Kubota ,  Masami Ikeno ,  Tadashi Hirano ,  Tsuyoshi Nakagami ,  Yuuji Noda ,  Yusuke Inai ,  Naoyoshi Toshine ,  Mikio Ito ,  Kazuhiko Ikeuchi ,  Yukihiro Yoshiya ,  Nobuyuki Kikuchi ,  Masaru Shimmitsu ,  Eisaku Takahashi

IPC分类号： G06F11/00 ,  G06F11/26

CPC分类号： G06F3/0659 ,  G06F3/0619 ,  G06F3/0623 ,  G06F3/0689 ,  G06F11/1435 ,  G06F11/1612 ,  G06F11/2056 ,  G11B20/1879 ,  G11B2020/183

摘要： In a storage system, a disk device performs recovery and transfers read data to a control device, and the control device judges the validity of the recovery to prevent a transfer of erroneous data. A control device read-accesses a disk device, and the disk device returns read data and a recovered read error response. A control device, at the time of an initial recovered read error, performs a retry of a similar command, and if an error does not occur for read commands including the retry read command, judges the data to be valid. Uncertain data (suspect data) upon occurrence of a recovered read error is restored through disk retry, and accurate read data can be transferred to the host.

摘要翻译： 在存储系统中，磁盘装置执行恢复并将读取数据传送到控制装置，并且控制装置判断恢复的有效性以防止错误数据的传送。 控制设备读取磁盘设备，并且磁盘设备返回读取数据和恢复的读取错误响应。 在初始恢复的读取错误时，控制装置执行类似的命令的重试，并且如果包括重试读取命令的读取命令不发生错误，则判断数据是有效的。 通过磁盘重试恢复出现恢复的读取错误时的不确定数据（可疑数据），并将准确的读取数据传输到主机。