公开(公告)号：US20060075156A1

公开(公告)日：2006-04-06

申请号：US10994339

申请日：2004-11-23

申请人： Takuya Okaki ,  Hirofumi Nakamura ,  Hironori Dohi ,  Masayuki Tanabe

发明人： Takuya Okaki ,  Hirofumi Nakamura ,  Hironori Dohi ,  Masayuki Tanabe

IPC分类号： G06F3/00

CPC分类号： G06F11/201

摘要： The present invention prompts path switching in accordance with the state of occurrence of intermittent failures, and prevents the responsiveness of a storage system from declining, or the like. Here, it is supposed, for example, that a host 1 is performing data communications with a storage device 2 by means of the path P1, and that an intermittent failure such as a communications time-out has occurred in path P1 on a number of occasions equal to or exceeding the prescribed threshold value. In this case, the controller 3 sends back a hardware error response in reply to an access from the host 1. Upon receiving a hardware error response from the storage device 2, the path control section 1B switches from the path P1 where the intermittent failure was detected (the original path) to a path P2 that is functioning normally (the target path), and then re-attempts the access command. In this way, it is possible to prompt the host 1 to switch the communications path in accordance with the state of occurrence of an intermittent failure, and therefore the responsiveness of the storage device 2 can be maintained.

摘要翻译： 本发明根据间歇性故障的发生状况提示路径切换，防止存储系统的响应性下降等。 这里，例如假设主机1通过路径P 1与存储装置2进行数据通信，并且在路径P 1上发生诸如通信超时的间歇性故障 次数等于或超过规定的阈值。 在这种情况下，控制器3回复来自主机1的访问的硬件错误响应。在从存储设备2接收到硬件错误响应时，路径控制部分1B从路径P 1切换到间歇 检测到正常运行的路径P 2（目标路径）的故障（原始路径），然后重新尝试访问命令。 以这种方式，可以根据间歇性故障的发生状态提示主机1切换通信路径，因此可以保持存储装置2的响应性。

公开(公告)号：US08032703B2

公开(公告)日：2011-10-04

申请号：US12219502

申请日：2008-07-23

申请人： Daisuke Tanimoto ,  Takuya Okaki

发明人： Daisuke Tanimoto ,  Takuya Okaki

IPC分类号： G06F12/00

CPC分类号： G06F11/1076 ,  G06F2211/1057 ,  G06F2211/1059

摘要： Proposed are a storage apparatus and a failure recovery method capable of performing failure recovery processing while reducing performance deterioration. Whether user data is written into a storage area provided by multiple storage mediums is managed for each stripe. When any one of the storage mediums is blocked due to a failure, correction copy processing is executed to the stripe written with the user data in preference to the stripe not written with the user data in a storage area provided by the multiple storage mediums, and correction copy processing is executed to the stripe not written with the user data in a storage area provided by the multiple storage mediums during spare time.

摘要翻译： 提出了能够在降低性能劣化的同时进行故障恢复处理的存储装置和故障恢复方法。 是否为每个条带管理用户数据是否写入由多个存储介质提供的存储区域。 当任何一个存储介质由于故障而被阻止时，优先对由多个存储介质提供的存储区域中未写入用户数据的条带优先用用户数据写入的条带执行校正复制处理，以及 在空闲时间内由多个存储介质提供的存储区域中的用户数据未写入的条带执行校正复制处理。

公开(公告)号：US20090307420A1

公开(公告)日：2009-12-10

申请号：US12219502

申请日：2008-07-23

申请人： Daisuke Tanimoto ,  Takuya Okaki

发明人： Daisuke Tanimoto ,  Takuya Okaki

IPC分类号： G06F12/00

CPC分类号： G06F11/1076 ,  G06F2211/1057 ,  G06F2211/1059

摘要： Proposed are a storage apparatus and a failure recovery method capable of performing failure recovery processing while reducing performance deterioration. Whether user data is written into a storage area provided by multiple storage mediums is managed for each stripe. When any one of the storage mediums is blocked due to a failure, correction copy processing is executed to the stripe written with the user data in preference to the stripe not written with the user data in a storage area provided by the multiple storage mediums, and correction copy processing is executed to the stripe not written with the user data in a storage area provided by the multiple storage mediums during spare time.

摘要翻译： 提出了能够在降低性能劣化的同时进行故障恢复处理的存储装置和故障恢复方法。 是否为每个条带管理用户数据是否写入由多个存储介质提供的存储区域。 当任何一个存储介质由于故障而被阻止时，优先对由多个存储介质提供的存储区域中未写入用户数据的条带优先用用户数据写入的条带执行校正复制处理，以及 在空闲时间内由多个存储介质提供的存储区域中的用户数据未写入的条带执行校正复制处理。

公开(公告)号：US07451341B2

公开(公告)日：2008-11-11

申请号：US10994339

申请日：2004-11-23

申请人： Takuya Okaki ,  Hirofumi Nakamura ,  Hironori Dohi ,  Masayuki Tanabe

发明人： Takuya Okaki ,  Hirofumi Nakamura ,  Hironori Dohi ,  Masayuki Tanabe

IPC分类号： G06F11/00

CPC分类号： G06F11/201

摘要： A method for controlling communications paths in a storage system provided between a storage device and a plurality of host devices. The method includes: respectively monitoring communications statuses between each of the host devices and the storage device; detecting whether a prescribed temporary failure, which can be corrected without switching communications paths, has occurred, based upon the detected communications statuses; a switching instruction step of not outputting a switching request signal for requesting switching from a failed communications path to a to-be-used communications path, before a number of occurrence of the prescribed temporary failure thus detected reaches a threshold value which is equal to or larger than 2, and outputting the switching request signal only when the number of occurrence of the prescribed temporary failure reaches the threshold value; and selecting the to-be-used communications path, from among the plurality of communications paths, on the basis of the switching request signal.

摘要翻译： 一种用于控制设置在存储设备和多个主机设备之间的存储系统中的通信路径的方法。 该方法包括：分别监视每个主机设备和存储设备之间的通信状态; 基于检测到的通信状况，检测是否发生了可以在不切换通信路径的情况下被校正的规定的临时故障; 切换指令步骤，在所检测到的规定临时故障的数目达到等于或等于的阈值之前，不输出用于请求从故障通信路径切换到待使用的通信路径的切换请求信号 大于2，并且仅当规定的临时故障的发生次数达到阈值时才输出切换请求信号; 以及根据切换请求信号从多个通信路径中选择待使用的通信路径。

公开(公告)号：US07774640B2

公开(公告)日：2010-08-10

申请号：US12010051

申请日：2008-01-18

申请人： Masayuki Tanabe ,  Takuya Okaki

发明人： Masayuki Tanabe ,  Takuya Okaki

IPC分类号： G06F11/00

CPC分类号： G06F12/0873 ,  G06F11/1666 ,  G06F11/2092 ,  G06F2212/284

摘要： A disk array apparatus where, when a failure occurs at a part of a cache memory, a memory area of an I/O processing controller other than the memory area where the failure has occurred is utilized without taking over the whole I/O processing to an I/O processing controller of other system is provided, so that influence of performance degradation can be minimized. In a disk array apparatus including dual cache memories, when a failure occurs at a part of the cache memory, only a memory area where the failure has occurred is closed, and reallocation thereof to another memory area of the same cache memory is conducted to continue an I/O processing.

摘要翻译： 一种磁盘阵列装置，其中，当高速缓冲存储器的一部分发生故障时，利用除了发生故障的存储区域之外的I / O处理控制器的存储器区域，而不用将整个I / O处理过渡到 提供了其他系统的I / O处理控制器，从而可以使性能下降的影响最小化。 在包括双高速缓冲存储器的磁盘阵列装置中，当在高速缓冲存储器的一部分发生故障时，仅关闭发生故障的存储区域，并且重新分配到同一高速缓冲存储器的另一个存储区域以继续 一个I / O处理。

公开(公告)号：US20080263394A1

公开(公告)日：2008-10-23

申请号：US12010051

申请日：2008-01-18

申请人： Masayuki Tanabe ,  Takuya Okaki

发明人： Masayuki Tanabe ,  Takuya Okaki

IPC分类号： G06F11/16 ,  G06F12/00

CPC分类号： G06F12/0873 ,  G06F11/1666 ,  G06F11/2092 ,  G06F2212/284

摘要： A disk array apparatus where, when a failure occurs at a part of a cache memory, a memory area of an I/O processing controller other than the memory area where the failure has occurred is utilized without taking over the whole I/O processing to an I/O processing controller of other system is provided, so that influence of performance degradation can be minimized. In a disk array apparatus including dual cache memories, when a failure occurs at a part of the cache memory, only a memory area where the failure has occurred is closed, and reallocation thereof to another memory area of the same cache memory is conducted to continue an I/O processing.

摘要翻译： 一种磁盘阵列装置，其中，当高速缓冲存储器的一部分发生故障时，利用除了发生故障的存储区域之外的I / O处理控制器的存储器区域，而不用将整个I / O处理过渡到 提供了其他系统的I / O处理控制器，从而可以使性能下降的影响最小化。 在包括双高速缓冲存储器的磁盘阵列装置中，当在高速缓冲存储器的一部分发生故障时，仅关闭发生故障的存储区域，并且重新分配到同一高速缓冲存储器的另一个存储区域以继续 一个I / O处理。