公开(公告)号：US08484419B2

公开(公告)日：2013-07-09

申请号：US12953984

申请日：2010-11-24

Applicant: Norie Iwasaki ,  Katsuyoshi Katori ,  Hiroyuki Miyoshi ,  Takeshi Nohta ,  Eiji Tosaka

Inventor： Norie Iwasaki ,  Katsuyoshi Katori ,  Hiroyuki Miyoshi ,  Takeshi Nohta ,  Eiji Tosaka

IPC: G06F12/00 ,  G06F12/08

CPC classification number: G06F11/1461 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/065 ,  G06F3/0682 ,  G06F3/0686 ,  G06F11/14 ,  G06F11/1451 ,  G06F11/1464 ,  G06F11/2056 ,  G06F11/2058 ,  G06F11/2071 ,  G06F12/0871 ,  G06F12/0875 ,  G06F12/122 ,  G06F2201/815 ,  G06F2201/84 ,  G06F2201/885 ,  G06F2212/452 ,  G06F2212/604 ,  G06F2212/69

Abstract: Systems and methods for backing up storage volumes are provided. One system includes a primary side, a secondary side, and a network coupling the primary and secondary sides. The secondary side includes first and second VTS including a cache and storage tape. The first VTS is configured to store a first portion of a group of storage volumes in its cache and migrate the remaining portion to its storage tape. The second VTS is configured to store the remaining portion of the storage volumes in its cache and migrate the first portion to its storage tape. One method includes receiving multiple storage volumes from a primary side, storing the storage volumes in the cache of the first and second VTS, migrating a portion of the storage volumes from the cache to storage tape in the first VTS, and migrating a remaining portion of the storage volumes from the cache to storage tape in the second VTS.

公开(公告)号：US08468314B2

公开(公告)日：2013-06-18

申请号：US12603823

申请日：2009-10-22

Applicant: Koji Uchida

Inventor： Koji Uchida

IPC: G06F12/00 ,  G06F12/16

CPC classification number: G06F3/0656 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F11/2058 ,  G06F11/2064 ,  G06F11/2074

Abstract: Plural storage devices are cascade connected via a network, and the remote copy is executed among the plural storage devices. The data transferred from the copy source are temporarily stored in the buffer. Upon completion of the data reception, the data in the buffer are output to the data storage unit collectively, and the data are transmitted to the network connected storage device as the copy destination.

Abstract translation: 多个存储设备通过网络级联连接，并且在多个存储设备之间执行远程复制。 从复制源传输的数据临时存储在缓冲区中。 数据接收完成后，缓冲器中的数据被统一地输出到数据存储单元，并将数据作为复制目的地发送到网络连接存储装置。

公开(公告)号：US20130138610A1

公开(公告)日：2013-05-30

申请号：US13747948

申请日：2013-01-23

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Alan G. MCCLURE

IPC: G06F17/30

CPC classification number: G06F17/30578 ,  G06F11/1612 ,  G06F11/2058 ,  G06F11/2074 ,  H04L67/1095 ,  H04L67/1097

Abstract: A method, device, and computer program product for performing asynchronous remote copy verification is provided. An initial track-to-track comparison between a primary and a secondary volume pair is performed. A first predetermined time is waited for. Upon completion of the first predetermined time, a subsequent primary volume track-to-secondary volume track comparison is performed only on the noncompare tracks. A query is performed for determining whether all of the noncompare tracks have been resolved. If any of the noncompare tracks have not been resolved, a query is performed for determining if a predetermined number of iterations of the primary volume track-to-secondary volume track comparison have been performed, and an additional subsequent primary volume track-to-secondary volume track comparison is performed only on unresolved noncompare tracks.

Abstract translation: 提供了用于执行异步远程复制验证的方法，设备和计算机程序产品。 执行主卷和次卷之间的初始跟踪到轨道比较。 等待第一个预定时间。 在完成第一预定时间后，仅在非比较轨道上执行随后的主音量跟踪到次音量轨道比较。 执行查询以确定所有非比较轨道是否已经被解析。 如果任何非比较轨道没有得到解决，则执行查询以确定是否执行了主卷跟踪卷轨道比较的预定次数的迭代，以及附加的随后的主卷跟踪到次要 音量跟踪比较仅在未解析的非比较曲目上执行。

公开(公告)号：US20130132690A1

公开(公告)日：2013-05-23

申请号：US13683455

申请日：2012-11-21

Applicant: Cisco Technology, Inc.

Inventor： Joe EPSTEIN

IPC: G06F12/14

CPC classification number: G06F11/1469 ,  G06F11/1451 ,  G06F11/2058 ,  G06F11/2069 ,  G06F12/14 ,  G06F12/1416 ,  G06F12/145 ,  G06F2201/84 ,  G06F2212/1052

Abstract: In an embodiment, a data processing method comprises, in a computer executing a supervisor program: the supervisor program establishing a plurality of different memory access permissions comprising any combination of read, write, and execute permissions for one or more different regions of memory of a first domain; setting the memory access permissions of a first set of the regions of memory to execute only; in response to a request from a process to read or write a particular region of memory in the first set, performing one or more responsive actions that prevent the process from reading or modifying one or more instructions or one or more embedded immediate values of the particular region of memory. Embodiments provide selective access to executable memory.

Abstract translation: 在一个实施例中，数据处理方法包括在执行主管程序的计算机中：管理程序建立多个不同的存储器访问许可，其包括读取，写入和执行许可的任何组合，用于一个或多个不同的 第一域; 将第一组存储器区域的存储器访问权限设置为仅执行; 响应于来自进程的读取或写入第一组中的特定存储器区域的请求，执行一个或多个响应动作，其阻止该进程读取或修改一个或多个指令或一个或多个嵌入的特定的即时值的即时值 记忆区域 实施例提供对可执行存储器的选择性访问。

公开(公告)号：US08438353B1

公开(公告)日：2013-05-07

申请号：US13180190

申请日：2011-07-11

Applicant: Prem Anand Ramanathan ,  Niranjan Sanjiv Pendharkar ,  Subhojit Roy

Inventor： Prem Anand Ramanathan ,  Niranjan Sanjiv Pendharkar ,  Subhojit Roy

IPC: G06F12/00

CPC classification number: G06F11/2058 ,  G06F11/1456 ,  G06F11/2074 ,  G06F11/2076 ,  G06F2201/84

Abstract: A method, system, and computer readable medium for asynchronously processing write operation on a volume having copy-on-write snapshots. In one embodiment, the method comprises the steps of: updating a normal mirror with write data associated with a write operation for the volume; asynchronously copying the write data from an asynchronous mirror to at least one copy-on-write snapshot; and, once the at least one copy-on-write snapshot is updated, updating the asynchronous mirror with the write data from the normal mirror.

Abstract translation: 一种方法，系统和计算机可读介质，用于在具有写复制快照的卷上异步处理写入操作。 在一个实施例中，该方法包括以下步骤：用与卷的写入操作相关联的写入数据来更新普通镜像; 将写入数据从异步镜像异步复制到至少一个写时复制快照; 并且一旦更新了至少一个写时复制快照，就用来自普通镜像的写入数据来更新异步镜像。

公开(公告)号：US08412900B1

公开(公告)日：2013-04-02

申请号：US13263457

申请日：2011-09-27

Applicant: Kazuhide Sano ,  Katsuhiro Okumoto

Inventor： Kazuhide Sano ,  Katsuhiro Okumoto

IPC: G06F12/16 ,  G06F13/00 ,  G06F13/42

CPC classification number: G06F11/2066 ,  G06F11/1443 ,  G06F11/201 ,  G06F11/2058 ,  G06F2201/855

Abstract: To inhibit the occurrence of communication failures in the system in which a secondary storage control apparatus acquires journal data from a primary storage control apparatus and writes the data to a secondary volume. The primary storage control apparatus comprises a command processing unit, a journal data creation unit, a journal data transfer unit which reads journal data to the secondary storage control apparatus, and a transfer control unit. In specified occasions, the transfer control unit controls at least either one of the journal data transfer amount by the journal data transfer unit and the width of the communication band utilized for journal data transfer.

Abstract translation: 为了抑制二次存储控制装置从主存储控制装置获取日志数据的系统中的通信失败的发生，并将数据写入二次卷。 主存储控制装置包括命令处理单元，日志数据创建单元，将日志数据读取到次级存储控制装置的日志数据传送单元和传送控制单元。 在特定情况下，传送控制单元通过日志数据传送单元控制日志数据传送量和用于日志数据传送的通信频带的宽度中的至少一个。

公开(公告)号：US08402213B2

公开(公告)日：2013-03-19

申请号：US12345947

申请日：2008-12-30

Applicant: Hariharan Kamalavannan ,  Suresh Dhanarajan ,  Senthil Kannan ,  Satish Subramanian ,  Selvaraj Rasappan

Inventor： Hariharan Kamalavannan ,  Suresh Dhanarajan ,  Senthil Kannan ,  Satish Subramanian ,  Selvaraj Rasappan

IPC: G06F12/00 ,  G06F3/06 ,  G06F13/00 ,  G06F13/28 ,  G06F9/26 ,  G06F9/34

CPC classification number: G06F11/2058 ,  G06F11/2061 ,  G06F11/2087

Abstract: A method for storing data and two sets of distributed mirrored data disposed as data stripes which permits data recovery without the necessity of parity calculations, is described. Redundant data are stored in groups of five physical hard drives which are logically segmented into stripe groups, each stripe group having three data stripe sets wherein one data stripe is protected by two distributed mirror stripes in accordance with an algorithm. The present method provides protection for all one- and two-disk failures and certain three-disk drive failures, for each physical five disk group, and retains a usable disk capacity of 33%.

Abstract translation: 描述了一种用于存储数据的方法和作为允许数据恢复而不需要奇偶校验计算的数据条排列的两组分布式镜像数据。 冗余数据被存储在五个物理硬盘驱动器中，这些物理硬盘驱动器被逻辑地分段成条带组，每个条带组具有三个数据条带集合，其中一个数据条带根据算法由两个分布式镜像条纹保护。 本方法为每个物理五磁盘组提供了对所有一磁盘和双磁盘故障和某些三磁盘驱动器故障的保护，并保留了33％的可用磁盘容量。

公开(公告)号：US20130067159A1

公开(公告)日：2013-03-14

申请号：US13230832

申请日：2011-09-12

Applicant: Karan Mehra

Inventor： Karan Mehra

IPC: G06F12/08

CPC classification number: G06F11/2058 ,  G06F3/0605 ,  G06F3/0619 ,  G06F3/0644 ,  G06F3/0665 ,  G06F3/0689 ,  G06F11/1451

Abstract: The storage devices of a storage device set (e.g., a RAID array) may generate a nonvolatile representation of the configuration of the storage device set, including logical disks, spaces, storage pools, and layout and provisioning plans, on the physical media of the storage devices. A computer accessing the storage device set may also generate a volatile memory representation of the storage device set to use while accessing the storage devices; however, the nonvolatile representation may not be performant due to its different usage and characteristics. Presented herein are techniques for accessing the storage device set according to a volatile memory representation comprising a hierarchy of logical disks, slabs, and extents, and an accessor comprising a provisioning component that handles slab accesses while applying provisioning plans, and that interfaces with a lower-level layout component that translates slab accesses into storage device accesses while applying layout plans to the storage device set.

Abstract translation: 存储设备集合的存储设备（例如，RAID阵列）可以在存储设备集合的物理介质上生成包括逻辑磁盘，空间，存储池以及布局和供应计划的存储设备组的非易失性表示 存储设备。 访问存储设备组的计算机还可以生成在访问存储设备时设置为使用的存储设备的易失性存储器表示; 然而，由于其不同的使用和特性，非易失性表示可能不具有性能。 这里提出的是根据包括逻辑磁盘，平板和扩展区的层级的易失性存储器表示访问存储设备组的技术，以及包括在应用供应计划时处理板访问的供应组件的存取器，并且与较低层 层布局组件，将平板访问转换为存储设备访问，同时将布局图应用于存储设备集。

公开(公告)号：US08386729B2

公开(公告)日：2013-02-26

申请号：US12105119

申请日：2008-04-17

Applicant: Alan George McClure

Inventor： Alan George McClure

IPC: G06F12/16

CPC classification number: G06F17/30578 ,  G06F11/1612 ,  G06F11/2058 ,  G06F11/2074 ,  H04L67/1095 ,  H04L67/1097

Abstract: A method, device, and computer program product for performing asynchronous remote copy verification is provided. An initial track-to-track comparison between a primary and a secondary volume pair is performed. Differences between primary and secondary volume tracks are recorded as noncompare tracks. A first predetermined time is waited for. A subsequent track-to-track comparison of the noncompare tracks is performed.

Abstract translation: 提供了用于执行异步远程复制验证的方法，设备和计算机程序产品。 执行主卷和次卷之间的初始跟踪到轨道比较。 初级和次级音轨之间的差异被记录为非比较曲目。 等待第一个预定时间。 执行非比较轨道的跟踪跟踪比较。

公开(公告)号：US08375004B2

公开(公告)日：2013-02-12

申请号：US12864298

申请日：2010-04-07

Applicant: Shuji Kondo ,  Katsuhiro Okumoto

Inventor： Shuji Kondo ,  Katsuhiro Okumoto

IPC: G06F7/00 ,  G06F17/00

CPC classification number: G06F11/1645 ,  G06F11/1456 ,  G06F11/2058 ,  G06F11/2074 ,  G06F11/2079 ,  G06F11/2082 ,  G06F2201/855

Abstract: In a previous storage apparatus, differential JNLs are reflected in order of the update numbers, to the data volumes thereof. If a first storage apparatus is suspended, it is determined which is newer: the update number which the journal recently reflected in a second storage apparatus or the update number reflected in a third storage apparatus. In the newer storage apparatus having the newer update number, it is determined whether one or more JNLs from the journal having the update number next to the update number which is not determined to be the newer to the journal having the update number determined to be the newer exist, or not. If the result of the determination is positive, from the newer storage apparatus to the previous storage apparatus which is not the newer of the second and the third storage apparatuses, one or more differential JNLs are copied.

Abstract translation: 在先前的存储装置中，差分JNL以更新号的顺序反映到其数据量。 如果暂停第一存储装置，则确定哪个是较新的：最近在第二存储装置中反映的日志的更新号或在第三存储装置中反映的更新号。 在具有较新的更新号码的较新的存储装置中，确定来自具有更新号码旁边的更新号码的一个或多个JNL是否被确定为具有更新号码的日志的未被确定为较新的更新号码确定为 更新是否存在。 如果确定结果为肯定，则从新的存储装置到不是第二和第三存储装置的新的存储装置，复制一个或多个差分JNL。