公开(公告)号：US07529965B2

公开(公告)日：2009-05-05

申请号：US11102802

申请日：2005-04-11

申请人： Kazuhiko Ikeuchi ,  Mikio Ito ,  Hidejiro Daikokuya ,  Yuji Noda

发明人： Kazuhiko Ikeuchi ,  Mikio Ito ,  Hidejiro Daikokuya ,  Yuji Noda

IPC分类号： G06F11/00

CPC分类号： G06F11/1662 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/1076 ,  G06F11/1092 ,  G06F11/2094 ,  G06F2211/1059

摘要： In case an error statistics of one of the disk drives exceeds a predetermined threshold, the disk is determined as a suspect disk drive. A recovery mode is set successively. During the time when a setting of the recovery mode is in progress and no access is made from a host 16 in this time, the address range of the suspect disk drive is specified. At the same time, a processing is started in that the data of the suspect disk is copied to a spare disk 34 sequentially to recover the data. The data of the suspect disk drive is copied to the spare disk drive 34 to recover the data when the address range of the suspect disk drive does not correspond to the write failure address range of a management table 48. The data of a normal disk drive is copied to the spare disk drive 34 to recover the data when the address range of the suspect disk drive corresponds to the write failure address range of the management table 48. Upon the completion of the recovery of the data, the suspect disk drive 32 is separated and replaced with the spare disk drive 34.

摘要翻译： 如果其中一个磁盘驱动器的错误统计信息超过预定阈值，则将磁盘确定为可疑磁盘驱动器。 恢复模式依次设置。 在恢复模式的设置正在进行的时间内，在此时不从主机16进行访问，指定了可疑磁盘驱动器的地址范围。 同时，开始处理，其中可疑盘的数据被顺序复制到备用盘34以恢复数据。 当可疑磁盘驱动器的地址范围不对应于管理表48的写入故障地址范围时，可疑磁盘驱动器的数据被复制到备用磁盘驱动器34以恢复数据。正常磁盘驱动器的数据 被复制到备用磁盘驱动器34以在可疑磁盘驱动器的地址范围对应于管理表48的写入失败地址范围时恢复数据。在数据恢复完成之后，可疑磁盘驱动器32是 分离并替换为备用磁盘驱动器34。

公开(公告)号：US20060117216A1

公开(公告)日：2006-06-01

申请号：US11102802

申请日：2005-04-11

申请人： Kazuhiko Ikeuchi ,  Mikio Ito ,  Hidejiro Daikokuya ,  Yuji Noda

发明人： Kazuhiko Ikeuchi ,  Mikio Ito ,  Hidejiro Daikokuya ,  Yuji Noda

IPC分类号： G06F11/00

CPC分类号： G06F11/1662 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/1076 ,  G06F11/1092 ,  G06F11/2094 ,  G06F2211/1059

摘要： In case an error statistics of one of the disk drives exceeds a predetermined threshold, the disk is determined as a suspect disk drive. A recovery mode is set successively. During the time when a setting of the recovery mode is in progress and no access is made from a host 16 in this time, the address range of the suspect disk drive is specified. At the same time, a processing is started in that the data of the suspect disk is copied to a spare disk 34 sequentially to recover the data. The data of the suspect disk drive is copied to the spare disk drive 34 to recover the data when the address range of the suspect disk drive does not correspond to the write failure address range of a management table 48. The data of a normal disk drive is copied to the spare disk drive 34 to recover the data when the address range of the suspect disk drive corresponds to the write failure address range of the management table 48. Upon the completion of the recovery of the data, the suspect disk drive 32 is separated and replaced with the spare disk drive 34.

摘要翻译： 如果其中一个磁盘驱动器的错误统计信息超过预定阈值，则将磁盘确定为可疑磁盘驱动器。 恢复模式依次设置。 在恢复模式的设置正在进行的时间内，在此时不从主机16进行访问，指定了可疑磁盘驱动器的地址范围。 同时，开始处理，其中可疑盘的数据被顺序复制到备用盘34以恢复数据。 当可疑磁盘驱动器的地址范围不对应于管理表48的写入失败地址范围时，可疑磁盘驱动器的数据被复制到备用磁盘驱动器34以恢复数据。 当可疑磁盘驱动器的地址范围对应于管理表48的写入失败地址范围时，普通磁盘驱动器的数据被复制到备用磁盘驱动器34以恢复数据。 在完成数据恢复之后，可疑磁盘驱动器32被分离并被备用磁盘驱动器34代替。

公开(公告)号：US07574561B2

公开(公告)日：2009-08-11

申请号：US11528697

申请日：2006-09-28

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

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

IPC分类号： G06F12/00

CPC分类号： G06F11/1076 ,  G06F2211/1069

摘要： A method and apparatus for enhancing performance of parity check in computer readable media is provided. For example, in a RAID (N+1) configuration, a virtual data strip is added for a calculation of parity. Data of the virtual data strip is set so that a predetermined portion of a data area in the virtual data strip has a predetermined value. Consequently, performance of parity check performed in a data processing system having a RAID configuration can be enhanced.

摘要翻译： 提供了一种用于增强计算机可读介质中的奇偶校验性能的方法和装置。 例如，在RAID（N + 1）配置中，添加虚拟数据条以计算奇偶校验。 虚拟数据条的数据被设置为使得虚拟数据条中的数据区的预定部分具有预定值。 因此，可以提高在具有RAID配置的数据处理系统中执行的奇偶校验的性能。

公开(公告)号：US07487289B2

公开(公告)日：2009-02-03

申请号：US11348320

申请日：2006-02-07

申请人： Mikio Ito ,  Hideo Takahashi ,  Shinya Mochizuki ,  Hidejiro Daikokuya ,  Kazuhiko Ikeuchi ,  Hideki Yamanaka ,  Katsuhiko Nagashima ,  Akihito Kobayashi ,  Koji Uchida ,  Shinichi Nishizono

发明人： Mikio Ito ,  Hideo Takahashi ,  Shinya Mochizuki ,  Hidejiro Daikokuya ,  Kazuhiko Ikeuchi ,  Hideki Yamanaka ,  Katsuhiko Nagashima ,  Akihito Kobayashi ,  Koji Uchida ,  Shinichi Nishizono

IPC分类号： G06F12/06 ,  G06F11/08 ,  G06F11/18

CPC分类号： G06F11/1076 ,  G06F2211/104

摘要： In the present invention, for each set of blocks [#(0) to #(N−1)] storing update data, a history block [#(N)] storing an update state value, for example, a generation, time or check code, showing an update state is provided, constituting a set of management data as a check object. When writing update data on a disk, a new update state value is calculated for the same set of management data and stored in memory as update state confirmation value. The new update state value is also set as write data in the history block in the same set of management data, and the entire of the set of management data including update data and update state value are written onto a disk. The history block is read and disk write omissions are detected by comparing the update state value and the update state confirmation value stored in memory.

摘要翻译： 在本发明中，对于存储更新数据的每个块[＃（0）〜＃（N-1）]组，存储更新状态值的历史块[＃（N）]，例如生成，时间或 检查代码，显示提供更新状态，构成作为检查对象的一组管理数据。 在磁盘上写入更新数据时，为同一组管理数据计算新的更新状态值，并将其作为更新状态确认值存储在内存中。 新的更新状态值也被设置为同一组管理数据中的历史块中的写入数据，并且包括更新数据和更新状态值的整个管理数据集合被写入盘中。 读取历史块，并通过比较存储在存储器中的更新状态值和更新状态确认值来检测磁盘写入缺失。

公开(公告)号：US07370145B2

公开(公告)日：2008-05-06

申请号：US11356287

申请日：2006-02-17

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

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

IPC分类号： G06F12/00

CPC分类号： G06F11/1076 ,  G06F12/0804 ,  G06F12/0866 ,  G06F2211/1009 ,  G06F2211/1066

摘要： A RAID control apparatus comprises at least a cache memory; an update information management table for storing update information; an update information storage unit for storing, in the update information management table, update information by detecting a data update; a reference value generation unit for generating a reference value expressing a load of a write back processing by using a Small Write method and a Read & Bandwidth Write method based on the update information; a write method determination unit for determining a write method according to the reference value and a write unit for carrying out a write processing, in order to provide a write back method for a RAID apparatus capable of improving a processing speed at the time of updating even in the case of including the processing of updating a part of data stripes.

摘要翻译： RAID控制装置至少包括高速缓存存储器; 更新信息管理表，用于存储更新信息; 更新信息存储单元，用于通过检测数据更新来在更新信息管理表中存储更新信息; 参考值生成单元，用于通过使用基于更新信息的小写入方法和读取和带宽写入方法来生成表示回写处理的负载的参考值; 用于根据参考值确定写入方法的写入方法确定单元和用于执行写入处理的写入单元，以提供能够提高甚至更新时的处理速度的RAID设备的回写方法 在包括更新一部分数据条带的处理的情况下。

公开(公告)号：US20070067667A1

公开(公告)日：2007-03-22

申请号：US11356287

申请日：2006-02-17

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

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

IPC分类号： G06F11/00

CPC分类号： G06F11/1076 ,  G06F12/0804 ,  G06F12/0866 ,  G06F2211/1009 ,  G06F2211/1066

摘要： A RAID control apparatus comprises at least a cache memory; an update information management table for storing update information; an update information storage unit for storing, in the update information management table, update information by detecting a data update; a reference value generation unit for generating a reference value expressing a load of a write back processing by using a Small Write method and a Read & Bandwidth Write method based on the update information; a write method determination unit for determining a write method according to the reference value and a write unit for carrying out a write processing, in order to provide a write back method for a RAID apparatus capable of improving a processing speed at the time of updating even in the case of including the processing of updating a part of data stripes.

摘要翻译： RAID控制装置至少包括高速缓存存储器; 更新信息管理表，用于存储更新信息; 更新信息存储单元，用于通过检测数据更新来在更新信息管理表中存储更新信息; 参考值生成单元，用于通过使用基于更新信息的小写入方法和读取和带宽写入方法来生成表示回写处理的负载的参考值; 用于根据参考值确定写入方法的写入方法确定单元和用于执行写入处理的写入单元，以提供能够提高甚至更新时的处理速度的RAID设备的回写方法 在包括更新一部分数据条带的处理的情况下。

公开(公告)号：US20060206752A1

公开(公告)日：2006-09-14

申请号：US11169979

申请日：2005-06-30

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

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

IPC分类号： G06F11/00

CPC分类号： G06F11/1076 ,  G06F2211/1009 ,  G06F2211/1059

摘要： When a write-back request for writing back new data in a cache memory to disk devices forming a redundant configuration of RAID is generated, a write-back processing unit, reserves a parity buffer area in the cache memory, generates new parity, and then, writes the new data and the new parity to the corresponding disk devices. When an error in which the consistency of RAID is broken occurs in a plurality of the disk devices upon write performed by the write-back processing unit, a recovery processing unit reserves, in the cache memory, a cache stripe area storing data of the entire stripe including the new data which is to be written back, and causes the cache control unit to manage it.

摘要翻译： 当产生写入高速缓冲存储器中的新数据到形成RAID冗余配置的磁盘设备的写回请求时，回写处理单元在高速缓冲存储器中保留奇偶校验缓冲区，产生新的奇偶校验 ，将新数据和新奇偶校验写入相应的磁盘设备。 当由写回处理单元进行的写入时，在多个磁盘装置中发生RAID的一致性的错误时，恢复处理单元在高速缓冲存储器中保存存储整个数据的高速缓存条带区域 包括要写回的新数据，并使高速缓存控制单元进行管理。

公开(公告)号：US20050216660A1

公开(公告)日：2005-09-29

申请号：US11138278

申请日：2005-05-27

申请人： Akihito Kobayashi ,  Mikio Ito ,  Kazuma Takatsu ,  Koji Uchida ,  Hidejiro Daikokuya ,  Kazuhiko Ikeuchi

发明人： Akihito Kobayashi ,  Mikio Ito ,  Kazuma Takatsu ,  Koji Uchida ,  Hidejiro Daikokuya ,  Kazuhiko Ikeuchi

IPC分类号： G06F11/20 ,  G06F12/00 ,  G06F12/08

CPC分类号： G06F11/1666 ,  G06F11/20 ,  G06F11/201 ,  G06F11/2087 ,  G06F11/2089 ,  G06F12/0804 ,  G06F12/0866 ,  G06F2212/262 ,  G06F2212/283 ,  G06F2212/286

摘要： A RAID apparatus that at least duplicates identical data to store thus duplicated data, which, when an instruction of writing data is given, writes data to a local cache and to a mirror cache, and writes data of the local cache to a primary disk and writes data of the mirror cache to a secondary disk. When an instruction of reading out data is given, and specified data is retained in the caches, the RAID apparatus outputs valid data of the local cache or the mirror cache, while when specified data is not retained in the caches, the RAID apparatus outputs valid data of the primary disk or the secondary disk.

摘要翻译： 至少复制相同数据以存储这样的复制数据的RAID装置，当给出写入数据的指令时，将数据写入本地高速缓存和镜像高速缓存，并将本地高速缓存的数据写入主盘， 将镜像缓存的数据写入辅助磁盘。 当给出读出数据的指令并且指定的数据被保留在高速缓存中时，RAID装置输出本地高速缓存或镜像缓存的有效数据，而当指定的数据不保留在高速缓存中时，RAID装置输出有效的 主磁盘或副磁盘的数据。

公开(公告)号：US07992035B2

公开(公告)日：2011-08-02

申请号：US11828643

申请日：2007-07-26

申请人： Hidejiro Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi

发明人： Hidejiro Daikokuya ,  Mikio Ito ,  Kazuhiko Ikeuchi

IPC分类号： G06F11/00

CPC分类号： G06F11/1092 ,  G06F11/2082

摘要： A response of a disk device during rebuild can be sped up. A disk array control device determines whether or not there is a normal read request during rebuild. If there is a read request during rebuild, data is read by sequentially switching a plurality of disk devices in a certain block size unit lower than a block size in which each disk device reads data during normal read.

摘要翻译： 重建期间磁盘设备的响应可以加快。 磁盘阵列控制装置在重建期间确定是否存在正常的读取请求。 如果在重建期间存在读取请求，则通过以比每个磁盘设备在正常读取期间读取数据的块大小的某个块大小单位顺序切换多个磁盘设备来读取数据。

公开(公告)号：US20060179215A1

公开(公告)日：2006-08-10

申请号：US11131416

申请日：2005-05-18

申请人： Shinya Mochizuki ,  Hideo Takahashi ,  Mikio Ito ,  Hidejiro Daikokuya ,  Kazuhiko Ikeuchi ,  Hideki Yamanaka ,  Katsuhiko Nagashima ,  Akihito Kobayashi ,  Koji Uchida ,  Shinichi Nishizono

发明人： Shinya Mochizuki ,  Hideo Takahashi ,  Mikio Ito ,  Hidejiro Daikokuya ,  Kazuhiko Ikeuchi ,  Hideki Yamanaka ,  Katsuhiko Nagashima ,  Akihito Kobayashi ,  Koji Uchida ,  Shinichi Nishizono

IPC分类号： G06F12/00

CPC分类号： G06F11/1076 ,  G06F2211/104

摘要： In the present invention, for each set of blocks [#(0) to #(N−1)] storing update data, a history block [#(N)] storing an update state value, for example, a generation, time or check code, showing an update state is provided, constituting a set of management data as a check object. When writing update data on a disk, a new update state value is calculated for the same set of management data and stored in memory as update state confirmation value. The new update state value is also set as write data in the history block in the same set of management data, and the entire of the set of management data including update data and update state value are written onto a disk. The history block is read and disk write omissions are detected by comparing the update state value and the update state confirmation value stored in memory.

摘要翻译： 在本发明中，对于存储更新数据的每个块[＃（0）〜＃（N-1）]组，存储更新状态值的历史块[＃（N）]，例如生成，时间或 检查代码，显示提供更新状态，构成作为检查对象的一组管理数据。 在磁盘上写入更新数据时，为同一组管理数据计算新的更新状态值，并将其作为更新状态确认值存储在内存中。 新的更新状态值也被设置为同一组管理数据中的历史块中的写入数据，并且包括更新数据和更新状态值的整个管理数据集合被写入盘中。 读取历史块，并通过比较存储在存储器中的更新状态值和更新状态确认值来检测磁盘写入缺失。