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    Latency reduction associated with a response to a request in a storage system
    1.
    发明授权
    Latency reduction associated with a response to a request in a storage system 有权
    与响应存储系统中的请求相关联的延迟减少

    公开(公告)号：EP2450784B1

    公开(公告)日：2018-05-02

    申请号：EP11188287.4

    申请日：2011-11-08

    申请人： LSI Corporation

    发明人： Pinchover, Yishai ,  Mandel, Ron

    IPC分类号： G06F3/06 ,  G06F12/0866

    CPC分类号： G06F3/065 ,  G06F3/0611 ,  G06F3/0656 ,  G06F3/0665 ,  G06F3/067 ,  G06F12/0866 ,  G06F2212/224

    摘要： A method includes segmenting a virtual volume into an active area configured to map to a first type of storage and a non-active area configured to map to a second type of storage through a storage virtualization engine. The second type of storage includes data associated with a host device and the first type of storage includes point-in-time images corresponding to the data associated with the host device. The first type of storage offers a higher performance than that of the second type of storage. The method also includes allocating a portion of space in the first type of storage to serve as a cache memory during a write operation and/or a read operation, and reducing a latency associated with the response to a write request and/or a read request through performing the corresponding write operation and/or the read operation through the first type of storage.

    COMPUTER SYSTEM MANAGEMENT DEVICE AND MANAGEMENT METHOD
    3.
    发明公开
    COMPUTER SYSTEM MANAGEMENT DEVICE AND MANAGEMENT METHOD 审中-公开
    VERWALTUNGSVORRICHTUNG VERWALTUNGSVERFAHRENFÜREIN COMPUTERSYSTEM

    公开(公告)号：EP2717165A1

    公开(公告)日：2014-04-09

    申请号：EP11867022.3

    申请日：2011-05-30

    申请人： Hitachi, Ltd.

    发明人： SATO, Takanori ,  KUSAMA, Takato

    IPC分类号： G06F12/00

    CPC分类号： G06F3/061 ,  G06F3/0647 ,  G06F3/067 ,  G06F3/0685 ,  G06F11/3433 ,  G06F11/3485 ,  G06F12/0866 ,  G06F2201/88 ,  G06F2201/885 ,  G06F2212/1016 ,  G06F2212/222 ,  G06F2212/224 ,  G06F2212/281 ,  G06F2212/314

    摘要： The present invention measures an actual utilization frequency of data and controls a location of this data in a storage apparatus in a case where a host computer makes joint use of a storage apparatus and a cache apparatus. A portion of data used by an application program 1A is stored in a storage apparatus 2 and a cache apparatus 3. A management apparatus 4 detects an I/O load of a page (4A), and detects an I/O load of cache data (4B). The management apparatus 4 determines a corresponding relationship between the page and the cache data (4C), and adds the I/O load of the cache data to the I/O load of the page.

    摘要翻译： 在主机共同使用存储装置和高速缓存装置的情况下，本发明测量数据的实际利用频率并控制该数据在存储装置中的位置。 应用程序1A使用的数据的一部分被存储在存储装置2和高速缓存装置3中。管理装置4检测页面的I / O负载（4A），并检测缓存数据的I / O负载 （4B）。 管理装置4确定页面和高速缓存数据（4C）之间的对应关系，并且将缓存数据的I / O负载添加到页面的I / O负载。

    Latency reduction associated with a response to a request in a storage system
    4.
    发明公开
    Latency reduction associated with a response to a request in a storage system 有权
    延迟减少的响应的情况下，以在存储系统中的请求

    公开(公告)号：EP2450784A3

    公开(公告)日：2013-07-10

    申请号：EP11188287.4

    申请日：2011-11-08

    申请人： LSI Corporation

    发明人： Pinchover, Yishai ,  Mandel, Ron

    IPC分类号： G06F3/06

    CPC分类号： G06F3/065 ,  G06F3/0611 ,  G06F3/0656 ,  G06F3/0665 ,  G06F3/067 ,  G06F12/0866 ,  G06F2212/224

    摘要： A method includes segmenting a virtual volume into an active area configured to map to a first type of storage and a non-active area configured to map to a second type of storage through a storage virtualization engine. The second type of storage includes data associated with a host device and the first type of storage includes point-in-time images corresponding to the data associated with the host device. The first type of storage offers a higher performance than that of the second type of storage. The method also includes allocating a portion of space in the first type of storage to serve as a cache memory during a write operation and/or a read operation, and reducing a latency associated with the response to a write request and/or a read request through performing the corresponding write operation and/or the read operation through the first type of storage.

    CACHE DISK STORAGE UPGRADE
    5.
    发明公开
    CACHE DISK STORAGE UPGRADE 有权
    磁盘缓存更新

    公开(公告)号：EP2069942A1

    公开(公告)日：2009-06-17

    申请号：EP07820108.4

    申请日：2007-09-11

    申请人： International Business Machines Corporation

    发明人： KISHI, Gregory, Tad ,  PEAKE, Jonathan, Wayne

    IPC分类号： G06F12/08 ,  G06F3/06

    CPC分类号： G06F3/0607 ,  G06F3/0613 ,  G06F3/0631 ,  G06F3/0689 ,  G06F12/0871 ,  G06F2212/224 ,  G06F2212/313

    摘要： Upgrades are made to the available capacity of cache disk storage without adding drawer(s) or blade(s) when the upgrade is requested. A cache control is configured to respond to a requested capacity upgrade, establishing a capacity restriction applicable to a filesystem providing active perceived available capacity spanning the disk drive subunits, such as drawers, blades or disk drives. The active perceived available data storage capacity and unused capacity of the filesystem are spread across the disk drive subunits. The capacity restrict ion is related to the requested upgrade adjustment, and the capacity restriction controls rates of data transfer with respect to the filesystem. The capacity restriction may comprise a freespace threshold for throttling of a fill rate of resident data pending premigration from the cache disk storage filesystem, and a premigration threshold for increasing drain rate of premigration data from the cache disk storage filesystem.

    EXTENDING SSD LIFETIME USING HYBRID STORAGE
    9.
    发明公开
    EXTENDING SSD LIFETIME USING HYBRID STORAGE 有权
    续期与混合存储LIFE SSD的

    公开(公告)号：EP2510446A2

    公开(公告)日：2012-10-17

    申请号：EP10836480.3

    申请日：2010-12-06

    申请人： Microsoft Corporation

    发明人： PRABHAKARAN, Vijayan ,  BALAKRISHNAN, Mahesh ,  SOUNDARARAJAN, Gokul

    IPC分类号： G06F13/10 ,  G06F12/00

    CPC分类号： G06F12/0888 ,  G06F12/0804 ,  G06F12/0866 ,  G06F2212/1036 ,  G06F2212/224

    摘要： A hybrid storage device uses a write cache such as a hard disk drive, for example, to cache data to a solid state drive (SSD). Data is logged sequentially to the write cache and later migrated to the SSD. The SSD is a primary storage that stores data permanently. The write cache is a persistent durable cache that may store data of disk write operations temporarily in a log structured fashion. A migration policy may be used to determine how long to cache the data in the write cache before migrating the data to the SDD. The migration policy may be implemented using one or more migration triggers that cause the contents of the write cache to be flushed to the SSD. Migration triggers may include a timeout trigger, a read threshold trigger, and a migration size trigger, for example.