Cascaded remote data facility system having diskless intermediate RDF site providing logical storage device functionality
    1.
    发明授权
    Cascaded remote data facility system having diskless intermediate RDF site providing logical storage device functionality 有权
    具有无盘中间RDF站点的级联远程数据设施系统提供逻辑存储设备功能

    公开(公告)号:US08135929B1

    公开(公告)日:2012-03-13

    申请号:US12079546

    申请日:2008-03-27

    IPC分类号: G06F13/00

    CPC分类号: G06F11/2058 G06F11/2071

    摘要: A cascaded RDF system includes a local RDF site coupled to a source of data, a remote RDF site, and at least one intermediate RDF site, interposed between the local RDF site and the remote RDF site. Data written by the source of data to the local RDF site is propagated through the at least one intermediate RDF site to be stored at the remote RDF site. The source of data may be a host. There may be more than one intermediate RDF site. The cascaded RDF system may also include an additional remote RDF site, coupled to one of the at least one intermediate RDF site.

    摘要翻译: 级联RDF系统包括耦合到数据源的本地RDF站点,远程RDF站点以及介于本地RDF站点和远程RDF站点之间的至少一个中间RDF站点。 由数据源写入本地RDF站点的数据将通过至少一个中间RDF站点进行传播,以存储在远程RDF站点。 数据源可能是主机。 可能有多个中间RDF站点。 级联RDF系统还可以包括耦合到所述至少一个中间RDF站点之一的附加远程RDF站点。

    Switching between copy mode and synchronous RDF mode
    2.
    发明授权
    Switching between copy mode and synchronous RDF mode 有权
    在复制模式和同步RDF模式之间切换

    公开(公告)号:US07257653B1

    公开(公告)日:2007-08-14

    申请号:US10673853

    申请日:2003-09-29

    IPC分类号: G06F13/10 G06F12/00

    摘要: Transferring data from a local storage device to a remote storage device includes providing, to a portion of the local storage device, data to be transferred from the local storage device to the remote storage device using a first mode that accesses an indicator of data being transferred, selecting a second mode for transferring data different from the first mode, where the second mode does not require the indicator, subdividing the portion of the local storage device into chunks, for each of the chunks, transferring the data, and, after all of the data from the chunks has been transferred, using the second mode for transferring data that is provided to the local storage device after selecting the second mode. Transferring data from a local storage device to a remote storage device may also include, prior to all of the data from the chunks being transferred, using a transition mode different from the first and second modes to transfer data that is provided to the local storage device after selecting the second mode, where the transition mode does not require the indicator.

    摘要翻译: 将数据从本地存储设备传送到远程存储设备包括:使用访问要传送的数据的指示符的第一模式向本地存储设备的一部分提供要从本地存储设备传送到远程存储设备的数据 ,选择用于传送与第一模式不同的数据的第二模式,其中第二模式不需要指示符,将本地存储设备的部分细分成块,对于每个块,传送数据,并且在所有 在选择第二模式之后,使用用于传送提供给本地存储设备的数据的第二模式已经传送了来自块的数据。 将数据从本地存储设备传送到远程存储设备还可以包括在使用不同于第一和第二模式的转换模式之前,传送来自块的所有数据之前,传送提供给本地存储设备的数据 在选择第二模式之后,转换模式不需要指示器。

    Dynamic RDF groups
    3.
    发明申请
    Dynamic RDF groups 有权
    动态RDF组

    公开(公告)号:US20060031526A1

    公开(公告)日:2006-02-09

    申请号:US11129023

    申请日:2005-05-13

    IPC分类号: G06F15/16

    摘要: Described are techniques used in dynamically modifying RDF groups. A system call is issued by a host computer system to execute a remote system call on a first data storage system to create, remove, or modify an RDF group between the first data storage system and another data storage system that is remotely connected to the first data storage system in an RDF switched environment. As part of executing the remote system call, data is pushed from the first to the second data storage systems without having an established link between the data storage systems. Each data storage system performs processing to make the necessary modifications in all directors in accordance with the dynamic RDF group. A status indicating success or failure of the remote system call is returned to the host computer system.

    摘要翻译: 描述了用于动态修改RDF组的技术。 由主机计算机系统发出系统呼叫以在第一数据存储系统上执行远程系统呼叫以在第一数据存储系统与远程连接到第一数据存储系统的另一个数据存储系统之间创建,删除或修改RDF组 数据存储系统在RDF交换环境中。 作为执行远程系统调用的一部分,将数据从第一数据存储系统推送到第二数据存储系统,而不会在数据存储系统之间建立链接。 每个数据存储系统执行处理,以根据动态RDF组在所有导演中进行必要的修改。 指示远程系统调用成功或失败的状态返回给主机系统。

    Diskless storage device
    4.
    发明授权
    Diskless storage device 有权
    无盘存储设备

    公开(公告)号:US08122209B1

    公开(公告)日:2012-02-21

    申请号:US12079436

    申请日:2008-03-27

    IPC分类号: G06F13/00

    摘要: A diskless storage device includes a volatile memory and at least one director, coupled to the volatile memory, that receives data for the diskless storage device and provides the data to the volatile memory. The at least one director provides logical storage device functionality without using non-volatile memory. The logical storage device functionality may include addressing tracks, blocks, and cylinders of logical storage devices of the diskless storage device. The volatile memory may include a plurality of slots and where data is stored in the slots. Data may be stored in unused ones of the slots and/or slots marked for reuse.

    摘要翻译: 无盘存储设备包括易失性存储器和耦合到易失性存储器的至少一个引导器,其接收无盘存储设备的数据并将数据提供给易失性存储器。 至少一个导向器提供逻辑存储设备功能而不使用非易失性存储器。 逻辑存储设备功能可以包括无盘存储设备的逻辑存储设备的寻址磁道,块和磁盘。 易失性存储器可以包括多个时隙,并且数据存储在时隙中。 数据可以存储在未被使用的时隙和/或标记为重新使用的时隙中。

    Remote read for storage devices
    5.
    发明授权
    Remote read for storage devices 有权
    远程读取存储设备

    公开(公告)号:US08589645B1

    公开(公告)日:2013-11-19

    申请号:US12079476

    申请日:2008-03-27

    IPC分类号: G06F12/00

    CPC分类号: G06F11/2058

    摘要: Reading data from a storage device includes presenting a read request to the storage device. In response to a more recent version of the data not being available on the storage device, the storage device requests the data from another storage device coupled to the storage device. In response to the more recent version of the data being available at the other storage device, the storage device obtains and copies the more recent version of the data prior to servicing the read request. The storage device services the read request by providing the data if the data is available. The storage device and the other storage device may be coupled using an RDF protocol.

    摘要翻译: 从存储设备读取数据包括向存储设备呈现读取请求。 响应于存储设备上不可用的更新版本的数据,存储设备从耦合到存储设备的另一存储设备请求数据。 响应于在其他存储设备上可获得的更新版本的数据,存储设备在服务读取请求之前获得并拷贝更新的数据版本。 如果数据可用,则存储设备通过提供数据来服务读请求。 可以使用RDF协议来耦合存储设备和另一存储设备。

    Techniques for automated evaluation and movement of data between storage tiers for thin devices
    6.
    发明授权
    Techniques for automated evaluation and movement of data between storage tiers for thin devices 有权
    用于在薄型设备的存储层之间自动评估和移动数据的技术

    公开(公告)号:US09052830B1

    公开(公告)日:2015-06-09

    申请号:US13135306

    申请日:2011-06-30

    摘要: Described are techniques for evaluating data movement alternative. A set of criteria including capacity and performance limits is received. First processing is performed to evaluate a plurality of alternatives for use in data movement with respect to a set of logical devices having data stored on a set of physical storage devices. Each of the plurality of alternatives includes a different set of data movement criteria comprising capacity limits and a different set of performance limits. The set of physical storage devices includes at least a first physical device of one of a plurality of storage tiers and a second physical device of another one of the plurality of storage tier. One of the sets of performance limits is selected in accordance with the first processing.

    摘要翻译: 描述了评估数据移动替代方法的技术。 收到一套标准,包括容量和性能限制。 执行第一处理以针对具有存储在一组物理存储设备上的数据的一组逻辑设备来评估用于数据移动的多个替代方案。 多个替代方案中的每一个包括不同的数据移动标准集合,其包括容量限制和不同的性能限制集合。 所述一组物理存储设备至少包括多个存储层中的一个的第一物理设备和所述多个存储层中的另一个存储层的第二物理设备。 根据第一处理选择性能极限集合中的一个。

    Dynamically updated data management processing plans generated outside a storage array
    7.
    发明授权
    Dynamically updated data management processing plans generated outside a storage array 有权
    在存储阵列外部生成动态更新的数据管理处理计划

    公开(公告)号:US09037548B1

    公开(公告)日:2015-05-19

    申请号:US13173056

    申请日:2011-06-30

    IPC分类号: G06F7/00 G06F3/06 G06F9/455

    摘要: A networked data storage system includes data movement logic and a virtual machine for executing a data management processing plan which is generated by a facility outside the storage array based on statistical information associated with extent level activity metrics provided by the storage array. Dynamically updated and automatically generated data management processing plans are provided to the storage array in the form of units of compiled byte code which the storage array is able to verify and execute using a virtual machine. The virtual machine interfaces with the environment in which it is embedded in a carefully constrained manner, thereby preventing clearly undesirable operations.

    摘要翻译: 网络数据存储系统包括数据移动逻辑和用于执行数据管理处理计划的虚拟机,所述数据管理处理计划是根据与由存储阵列提供的扩展级别活动度量相关联的统计信息而由存储阵列外的设施生成的。 动态更新和自动生成的数据管理处理计划以存储阵列能够使用虚拟机进行验证和执行的编译字节码单元的形式提供给存储阵列。 虚拟机以仔细约束的方式与其嵌入的环境进行接口,从而防止明显不期望的操作。

    System and method for improving cache performance
    8.
    发明授权
    System and method for improving cache performance 有权
    提高缓存性能的系统和方法

    公开(公告)号:US08886883B1

    公开(公告)日:2014-11-11

    申请号:US13436906

    申请日:2012-03-31

    IPC分类号: G06F12/02 G06F12/08

    CPC分类号: G06F12/0866 G06F2212/401

    摘要: A method, computer program product, and computing system for identifying compressed content within a first cache system to a data array associated with the first cache system. Related content is located on the data array that is associated with the compressed content on the first cache system and it is determined whether the related content on the data array is compressible.

    摘要翻译: 一种用于将第一高速缓存系统内的压缩内容识别到与第一高速缓存系统相关联的数据阵列的方法,计算机程序产品和计算系统。 相关内容位于与第一高速缓存系统上的压缩内容相关联的数据阵列上,并且确定数据阵列上的相关内容是否是可压缩的。

    Techniques for automated evaluation and movement of data between storage tiers
    9.
    发明授权
    Techniques for automated evaluation and movement of data between storage tiers 有权
    存储层之间自动评估和数据移动的技术

    公开(公告)号:US09047017B1

    公开(公告)日:2015-06-02

    申请号:US13331010

    申请日:2011-12-20

    摘要: Described are techniques for configuring data storage. Criteria identifying limits is received for a plurality of storage tiers for one or more logical devices. The storage tiers include a first storage tier and one or more other storage tiers where the first storage tier is higher performing than the other storage tiers. First processing is performed to determine a first set of data portions of the logical devices to be stored on physical devices of the first storage tier subject to limits included in said criteria. First processing includes determining scores for data portions of the logical devices. Each score is calculated using one or more metrics including a first metric weighted based on an expected I/O size. The data portions are ranked in accordance with the scores. The first set of data portions stored in the first storage tier is selected based on the score ranking.

    摘要翻译: 描述了用于配置数据存储的技术。 对于一个或多个逻辑设备的多个存储层接收标准识别限制。 存储层包括第一存储层和一个或多个其他存储层,其中第一存储层比其他存储层更高的性能。 执行第一处理以确定要存储在第一存储层的物理设备上的逻辑设备的第一组数据部分,其受到包括在所述标准中的限制。 第一处理包括确定逻辑设备的数据部分的分数。 使用包括基于预期I / O大小加权的第一度量的一个或多个度量来计算每个分数。 数据部分根据分数排列。 基于评分等级来选择存储在第一存储层中的第一组数据部分。

    Performing write operations in a multi-tiered storage environment
    10.
    发明授权
    Performing write operations in a multi-tiered storage environment 有权
    在多层存储环境中执行写入操作

    公开(公告)号:US09026765B1

    公开(公告)日:2015-05-05

    申请号:US13610118

    申请日:2012-09-11

    IPC分类号: G06F12/00 G06F3/06

    摘要: Techniques are described for processing a data operation that writes first data to a data portion currently stored on first physical storage of a first storage tier of a data storage system, including storage tiers each having a different performance ranking relative to other storage tiers. Second physical storage is allocated from one of the storage tiers for storing the first data written to the data portion. This one storage tier is selected independent of the first storage tier. The first data is stored in a cache and destaged from the cache to the second physical storage. A single merged copy of data for the data portion is formed. Based on an activity level of the data portion, a target tier is selected for storing the single merged copy of data for the data portion.

    摘要翻译: 描述了用于处理数据操作的技术,该数据操作将第一数据写入当前存储在数据存储系统的第一存储层的第一物理存储器上的数据部分,包括相对于其他存储层具有不同性能等级的存储层。 从存储层之一分配第二物理存储器,用于存储写入数据部分的第一数据。 独立于第一个存储层选择这一个存储层。 第一个数据存储在缓存中,并从缓存中转储到第二个物理存储。 形成数据部分的数据的单个合并副本。 基于数据部分的活动级别,选择目标层以存储用于数据部分的单个合并的数据副本。