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    Systems and methods of data migration in snapshot operations
    4.
    发明申请
    Systems and methods of data migration in snapshot operations 有权
    快照操作中数据迁移的系统和方法

    公开(公告)号：US20040260900A1

    公开(公告)日：2004-12-23

    申请号：US10600417

    申请日：2003-06-19

    发明人： David Alan Burton ,  Noel Simen Otterness

    IPC分类号： G06F012/16

    CPC分类号： G06F3/065 ,  G06F3/0608 ,  G06F3/0647 ,  G06F11/1402 ,  G06F2201/82

    摘要： The present invention relates to a snapshot system for a data storage system including a host that communicates with a cache memory, source storage, target storage, and metadata, including a source storage for active data, a target storage to store migrated snapshot data, first metadata (e.g., bitmaps and log files with pointers) to indicate when and to locate where the first snapshot data is in the target storage, and second metadata (e.g., bitmaps and log files pointers) to indicate when and to locate where the second snapshot data is in the target storage wherein the first metadata and the second metadata locate the same snapshot data in the target storage. The invention also relates to destaging data so as to maintain data consistency including reading the metadata for all of the snapshots into a host memory, searching the metadata to identify snapshots that require original data to be destaged, destaging the original data to the target storage, and updating the metadata to locate the original data and indicate completion of target destage operation.

    摘要翻译： 本发明涉及一种用于数据存储系统的快照系统，其包括与高速缓冲存储器，源存储器，目标存储器和元数据通信的主机，其包括用于活动数据的源存储器，用于存储迁移的快照数据的目标存储器，第一 元数据（例如，具有指针的位图和日志文件），以指示何时以及定位目标存储中的第一个快照数据的位置，以及第二个元数据（例如，位图和日志文件指针），以指示什么时候并定位第二个快照 数据在目标存储器中，其中第一元数据和第二元数据在目标存储器中定位相同的快照数据。 本发明还涉及降级数据，以便维持数据一致性，包括将所有快照的元数据读入主机存储器，搜索元数据以识别需要去往原始数据的快照，将原始数据降级到目标存储器， 并且更新元数据以定位原始数据并指示目标去往操作的完成。

    Method, system, and program for reverse restore of an incremental virtual copy
    5.
    发明申请
    Method, system, and program for reverse restore of an incremental virtual copy 失效
    用于反向恢复增量虚拟副本的方法，系统和程序

    公开(公告)号：US20040260895A1

    公开(公告)日：2004-12-23

    申请号：US10464918

    申请日：2003-06-18

    发明人： Sam Clark Werner ,  William Frank Micka ,  Dalit Tzafrir ,  Matthew Sanchez ,  Sivan Tal ,  Ifat Nuriel ,  Sheli Rahav ,  Gail Andrea Spear ,  Warren K. Stanley ,  Thomas Charles Jarvis ,  Amiram Hayardeny ,  Shachar Fienblit ,  Rivka Mayraz Matosevich ,  Svetlana Shukevich ,  Theresa Mary Brown

    IPC分类号： G06F012/16

    CPC分类号： G06F11/2082 ,  Y10S707/99953

    摘要： Disclosed is a technique for applying changes back to an original copy of data to reduce an amount of data transferred. A first indicator is maintained for each block of data in a first storage to indicate whether the block of data has been updated in the first storage since the block of data was last transferred to a second storage. A second indicator is maintained for each block of data in the second storage to indicate whether the block of data has been updated in the second storage since the block of data in the second storage was overwritten by a corresponding block of data in the first storage. Upon receiving a reverse restore operation, each block of data in the second storage for which a second indicator has been set to indicate that the block of data has been updated is transferred to the first storage and each block of data in the second storage that corresponds to a block of data in the first storage for which a first indicator has been set to indicate that the block of data in the first storage has been updated is transferred to the first storage.

    摘要翻译： 公开了一种用于将更改应用于数据的原始副本以减少传送的数据量的技术。 对于第一存储器中的每个数据块来维持第一指示符，以指示数据块是否已经在第一存储器中被更新，因为数据块最后传送到第二存储器。 维持第二存储器中的每个数据块的第二指示符，以指示在第二存储器中数据块是否已被更新，因为第二存储器中的数据块被第一存储器中相应的数据块覆盖。 在接收到反向恢复操作时，第二存储器中的已经被设置为指示数据块已被更新的第二存储器中的每个数据块被传送到对应于第二存储器的第一存储器和第二存储器中的每个数据块 涉及第一存储器中已经设置了第一指示符以指示第一存储器中的数据块已经被更新的数据块被传送到第一存储器。

    Method and apparatus for managing replication volumes
    6.
    发明申请
    Method and apparatus for managing replication volumes 有权
    用于管理复制卷的方法和设备

    公开(公告)号：US20040260873A1

    公开(公告)日：2004-12-23

    申请号：US10463366

    申请日：2003-06-17

    申请人： Hitachi, Ltd.

    发明人： Naoki Watanabe

    IPC分类号： G06F012/16 ,  G06F012/00

    CPC分类号： G06F11/2058 ,  G06F11/1456 ,  G06F11/2069

    摘要： Aspects of the invention provide for at least one first data portion of a first storage device in a system to be updated to a second storage and further replicating the update to a second data storage portion of the second storage device if a substantial system error fails to occur during the updating of the first data storage portion. Aspects can, for example, include facilitating restoration of a primary or secondary volume of a primary storage device or of a first or second secondary storage via secondary storage device copying, and/or alternative, alternating or internal/external application driven first and second (and/or further) secondary storage portion utilization. Aspects can also include state driven synchronization or re-synchronization of local and remote copies, or one or more of storage devices utilized can, for example, include a disk array.

    摘要翻译： 本发明的各方面提供系统中的第一存储设备的至少一个第一数据部分，以被更新到第二存储器，并且如果基本的系统错误失败，则进一步将更新复制到第二存储设备的第二数据存储部分 在更新第一数据存储部分期间发生。 例如，方面可以包括促进通过次级存储设备复制和/或替代的交替或内部/外部应用驱动的主存储设备或第一或第二辅助存储器的初级或次级容量的恢复，第一和第二（第二） 和/或进一步）辅助存储部分利用。 方面还可以包括状态驱动的同步或本地和远程副本的重新同步，或者所使用的一个或多个存储设备可以例如包括磁盘阵列。

    Semiconductor integrated circuit device
    8.
    发明申请
    Semiconductor integrated circuit device 有权

    公开(公告)号：US20040221098A1

    公开(公告)日：2004-11-04

    申请号：US10699223

    申请日：2003-10-30

    发明人： Yutaka Ito ,  Takayuki Aisu ,  Yukihide Suzuki

    IPC分类号： G06F012/16

    CPC分类号： G11C29/42 ,  G06F11/106 ,  G11C7/02 ,  G11C7/1006 ,  G11C7/1072 ,  G11C11/401 ,  G11C11/406 ,  G11C11/40615 ,  G11C11/40618 ,  G11C2211/4061 ,  G11C2211/4062

    摘要： In a semiconductor integrated circuit device, a command decoder 8 is adapted to receive not only an external command but also an internal command. An ECC controller 6 has a command generator and an address generator. When the command decoder 8 decodes an external entry command, the command generator instructs encoding to an ECC-CODEC circuit 7 and the address generator sequentially produces addresses which are supplied to a memory array. The ECC-CODEC circuit 7 produces check bits for error detection/correction with reference to information data of the memory array. Upon completion an encoding operation of writing the check bits into a predetermined region of the memory array, the ECC controller 6 delivers an end signal to the command decoder as the internal command to make a super self-refresh control circuit 9 start a super self-refresh operation.

    Methods of and apparatus for efficient buffer cache utilization
    9.
    发明申请
    Methods of and apparatus for efficient buffer cache utilization 有权
    高效缓冲区缓存利用的方法和设备

    公开(公告)号：US20040210794A1

    公开(公告)日：2004-10-21

    申请号：US10825717

    申请日：2004-04-16

    申请人： Adaptec, Inc.

    发明人： Alexander H. Frey ,  Keith E. Conner

    IPC分类号： G06F012/16

    CPC分类号： G06F11/1076 ,  G06F11/20 ,  G06F2211/1028

    摘要： Efficient buffer cache utilization frees a data buffer as soon as data buffer processing is completed, and without losing association of the freed data buffer and a descriptor buffer. Separate free buffer link lists identify the freed data buffer and any freed descriptor buffer. The data buffer is rapidly processed then freed generally before completion of processing of the descriptor buffer, freeing the processed associated data buffer before the associated descriptor buffer is freed. The association of the processed free data buffer and the descriptor buffer may be ended to enable the more frequent use of the large capacity data buffer for other update requests.

    摘要翻译： 一旦数据缓冲区处理完成，高效缓冲区高速缓存利用就释放数据缓冲区，并且不会丢失释放的数据缓冲区和描述符缓冲区的关联。 单独的空闲缓冲区链接列表标识释放的数据缓冲区和任何释放的描述符缓冲区。 数据缓冲区被快速处理，然后在完成描述符缓冲器的处理之前被释放，在关联的描述符缓冲器被释放之前释放处理后的关联数据缓冲器。 可以结束处理的空闲数据缓冲器和描述符缓冲器的关联，以便更频繁地使用大容量数据缓冲器用于其他更新请求。

    Computer system
    10.
    发明申请
    Computer system 失效
    电脑系统

    公开(公告)号：US20040210726A1

    公开(公告)日：2004-10-21

    申请号：US10788452

    申请日：2004-03-01

    发明人： Norifumi Nishikawa ,  Kazuhiko Mogi ,  Nobuo Kawamura ,  Takashi Oeda

    IPC分类号： G06F013/28 ,  G06F012/16 ,  G06F012/14 ,  G06F012/00 ,  G06F013/00

    CPC分类号： G06F11/2087 ,  G06F11/2033 ,  G06F11/2038 ,  G06F11/2069 ,  G06F11/2074 ,  G06F11/2097

    摘要： A method includes a configuration definition creation step of writing configuration information on a primary site into a storage subsystem; a data transfer step of copying the configuration information, which is written into a storage device, to a storage subsystem in a secondary site over a network; a data reception step of receiving the transferred configuration information and storing it in the storage subsystem in the secondary site; and a configuration definition step of reading the stored configuration information and settings up a server in the secondary site.

    摘要翻译： 一种方法包括：将主站点上的配置信息写入到存储子系统中的配置定义创建步骤; 数据传送步骤，将写入存储装置的配置信息复制到通过网络的辅助站点中的存储子系统; 数据接收步骤，接收所传送的配置信息并将其存储在辅助站点中的存储子系统中; 以及配置定义步骤，用于读取存储的配置信息并设置辅助站点中的服务器。