Retrieval of management information
    5.
    发明授权
    Retrieval of management information 有权
    检索管理信息

    公开(公告)号:US06711574B1

    公开(公告)日:2004-03-23

    申请号:US09496308

    申请日:2000-02-01

    IPC分类号: G06F1730

    摘要: A system and method of retrieving management information in a protocol environment having a maximum retrieval byte size is provided. An example of such a protocol environment is SCSI environment. A retrieval command is sent from an initiator to a target where the retrieval command is capable of retrieving more information than the maximum allowed by the protocol. A target buffer is created at the target in response to the retrieval command and the target buffer is filled with management information associated with the target. The management information may be in the form of mode pages when the method is applied in a SCSI environment. The management information is then sent from the target buffer to the initiator. If all of the management information is not retrieved, a second retrieval command is sent by the initiator to retrieve at least a portion of the unsent management information.

    摘要翻译: 提供了一种在具有最大检索字节大小的协议环境中检索管理信息的系统和方法。 这种协议环境的一个例子是SCSI环境。 检索命令从启动器发送到目标,其中检索命令能够检索比协议允许的最大的信息更多的信息。 响应于检索命令在目标上创建目标缓冲器,并且目标缓冲器被填充有与目标相关联的管理信息。 当在SCSI环境中应用该方法时,管理信息可以是模式页面的形式。 然后,管理信息从目标缓冲区发送到启动器。 如果没有检索到所有管理信息,则发起者发送第二检索命令以检索未发送的管理信息的至少一部分。

    Managing data storage
    7.
    发明授权
    Managing data storage 有权
    管理数据存储

    公开(公告)号:US09037793B1

    公开(公告)日:2015-05-19

    申请号:US13249300

    申请日:2011-09-30

    IPC分类号: G06F3/06 G06F11/10

    摘要: A method and a system for use in managing data storage is disclosed. Data storage is managed in a data storage system comprising a first and a second storage processor and a plurality of data storage devices arranged in a RAID configuration, the first and the second storage processor having respective caches configured to mirror each other. A write I/O is received in the data storage system, wherein the write I/O is an operation for updating data storage in the data storage system. Stripe layout in the plurality of data storage devices in the data storage system is established. It is determined whether the write I/O is at least one full stripe write in response to receiving the write I/O and establishing stripe layout. The at least one full stripe write bypasses cache and is delivered to the plurality of data storage devices in the data storage system in response to determining the write I/O is at least one full stripe write.

    摘要翻译: 公开了一种用于管理数据存储的方法和系统。 在包括配置在RAID配置中的第一和第二存储处理器和多个数据存储设备的数据存储系统中管理数据存储,所述第一和第二存储处理器具有被配置为彼此镜像的各个高速缓存。 在数据存储系统中接收写入I / O,其中写入I / O是用于更新数据存储系统中的数据存储的操作。 建立数据存储系统中的多个数据存储装置中的条纹布局。 响应于接收到写入I / O和建立条带布局来确定写入I / O是否是至少一个完整条带写入。 响应于确定写入I / O是至少一个完整条带写入,所述至少一个完整条带写入绕过高速缓存并被递送到数据存储系统中的多个数据存储设备。

    Managing mirroring in data storage system having fast write device and slow write device
    8.
    发明授权
    Managing mirroring in data storage system having fast write device and slow write device 有权
    在具有快速写入设备和缓慢写入设备的数据存储系统中管理镜像

    公开(公告)号:US08239645B1

    公开(公告)日:2012-08-07

    申请号:US11904868

    申请日:2007-09-28

    IPC分类号: G06F13/00

    摘要: A method is used in managing mirroring in data storage system having a fast write device and a slow write device. A write I/O is received and is executed on the fast write device which includes a solid state drive. The write I/O is stored in interim storage having high performance sequential write capability. It is indicated that execution of the write I/O is complete. Based on the interim storage, the write I/O is executed on the slow write device.

    摘要翻译: 在具有快速写入设备和慢速写入设备的数据存储系统中使用一种方法来管理镜像。 写入I / O被接收并且在包括固态驱动器的快速写入设备上执行。 写入I / O存储在具有高性能顺序写入能力的中间存储器中。 表示写入I / O的执行完成。 基于临时存储,写入I / O在慢速写入设备上执行。

    Pushing attribute information to storage devices for network topology access
    9.
    发明授权
    Pushing attribute information to storage devices for network topology access 有权
    将属性信息推送到存储设备进行网络拓扑访问

    公开(公告)号:US06754718B1

    公开(公告)日:2004-06-22

    申请号:US09568386

    申请日:2000-05-10

    IPC分类号: G06F1516

    摘要: A method apparatus and computer program product for providing access to host attribute information in a storage area network is disclosed. The storage area network is composed of a plurality of hosts coupled to at least one initiator. Each initiator is coupled to one or more targets and each initiator has an associated identifier. In each host, the identifier of the initiator is related to other host attribute information. The identifier may be, for example, a world wide name. The host attribute information including the identifier is sent from each of the plurality of hosts to the one or more targets and stored in memory of an associated storage array. Either a host or requestor remote from the storage array may request the collected host attribute information from the storage array. A topology of the storage area network may then be formed from the host attribute information of each host.

    摘要翻译: 公开了一种用于提供对存储区域网络中的主机属性信息的访问的方法装置和计算机程序产品。 存储区域网络由耦合到至少一个启动器的多个主机组成。 每个启动器被耦合到一个或多个目标,并且每个启动器具有相关联的标识符。 在每个主机中,启动器的标识符与其他主机属性信息相关。 标识符可以是例如世界名称。 包括标识符的主机属性信息从多个主机中的每一个发送到一个或多个目标并存储在相关联的存储阵列的存储器中。 远离存储阵列的主机或请求者可以从存储阵列请求收集的主机属性信息。 然后可以从每个主机的主机属性信息形成存储区域网络的拓扑。

    Data migration techniques
    10.
    发明授权
    Data migration techniques 有权
    数据迁移技术

    公开(公告)号:US09176902B1

    公开(公告)日:2015-11-03

    申请号:US13535018

    申请日:2012-06-27

    IPC分类号: G06F3/06 G06F13/14 G06F12/00

    摘要: Described are techniques for migrating data. A source data storage system includes a source device and a target data storage system includes a target device. A passive path and an active path are provided for a host to access data of a logical device. The host recognizes the passive path and the active path as paths to the logical device. The passive path is between the host and the source data storage system. The active path is between the host and the target data storage system and used in connection with proxying requests directed to the logical device received from the host through the target data storage system while migrating data for the logical device from the source device to the target device. Migrating is controlled by a migration module executing on the target data storage system that copies data from the source device to the target device.

    摘要翻译: 描述了用于迁移数据的技术。 源数据存储系统包括源设备,目标数据存储系统包括目标设备。 为主机提供无源路径和活动路径以访问逻辑设备的数据。 主机将被动路径和活动路径识别为逻辑设备的路径。 被动路径位于主机和源数据存储系统之间。 活动路径位于主机和目标数据存储系统之间,并且在将用于逻辑设备的数据从源设备迁移到目标设备的同时通过目标数据存储系统与代理请求相关联地被用于从主机接收到的逻辑设备的代理请求 。 迁移由在目标数据存储系统上执行的迁移模块控制,目标数据存储系统将数据从源设备复制到目标设备。