TAPE-MANAGED PARTITION SUPPORT FOR EFFECTIVE WORKLOAD ALLOCATION AND SPACE MANAGEMENT
    83.
    发明申请
    TAPE-MANAGED PARTITION SUPPORT FOR EFFECTIVE WORKLOAD ALLOCATION AND SPACE MANAGEMENT 有权
    带状管理分支支持有效的工作分配和空间管理

    公开(公告)号:US20160041758A1

    公开(公告)日:2016-02-11

    申请号:US14452406

    申请日:2014-08-05

    IPC分类号: G06F3/06 G06F12/08

    摘要: In one embodiment, a system includes a disk cache and a controller configured to create a cache resident partition in the disk cache, the cache resident partition being configured to store data thereto that is not subject to HSM, manage the cache resident partition to have a size that is greater than a first minimum size and less than or equal to a total size of the disk cache, receive data to store to the disk cache, store the data to the cache resident partition at least initially, create tape-managed partitions in the disk cache, each of the tape-managed partitions being configured to store data that is subject to HSM, and manage the tape-managed partitions to have a size that is greater than a second minimum size and less than or equal to a total size of the disk cache less a size of all other partitions combined.

    摘要翻译: 在一个实施例中,系统包括磁盘高速缓存和配置为在磁盘高速缓存中创建高速缓存驻留分区的控制器,高速缓存驻留分区被配置为将数据存储到不经受HSM的数据上,管理高速缓存驻留分区以具有 大小大于第一个最小大小且小于或等于磁盘高速缓存的总大小,接收要存储到磁盘缓存的数据,至少在最初将数据存储到高速缓存驻留分区,创建磁带管理分区 磁盘缓存,每个磁带管理的分区被配置为存储受HSM管理的数据,并且管理磁带管理的分区具有大于第二最小大小并小于或等于总大小的大小 的磁盘缓存减去所有其他分区的大小合并。

    STORAGE DEVICE AND METHOD FOR CONTROLLING STORAGE DEVICE
    84.
    发明申请
    STORAGE DEVICE AND METHOD FOR CONTROLLING STORAGE DEVICE 有权
    存储装置和用于控制存储装置的方法

    公开(公告)号:US20150378629A1

    公开(公告)日:2015-12-31

    申请号:US14767019

    申请日:2013-05-20

    申请人: HITACHI, LTD.

    IPC分类号: G06F3/06 G06F12/10

    摘要: To detect an abnormality of logical and physical addresses, a storage device includes: plural drives each having a storage medium configuring a logical volume provided to a host device; a front end I/F that receives an I/O request including a logical address for identifying a logical storage area of the logical volume, and user data from the host computer; a processor that controls conversion from the logical address into the physical address for identifying a physical storage area of the storage medium; and a back end I/F that controls write/read of user data with respect to the drives based on the physical address. In the drives, data where a first guarantee code obtained based on the physical address and the logical address corresponding to the physical address is added to the user data is stored in the physical storage area designated by the physical address of the storage medium.

    摘要翻译: 为了检测逻辑和物理地址的异常,存储设备包括:多个驱动器,每个驱动器具有配置提供给主机设备的逻辑卷的存储介质; 接收包括用于识别逻辑卷的逻辑存储区域的逻辑地址的I / O请求的前端I / F和来自主机的用户数据; 控制从逻辑地址到物理地址的转换的处理器,用于识别存储介质的物理存储区域; 以及基于物理地址控制相对于驱动器的用户数据的写入/读取的后端I / F。 在驱动器中,将由物理地址获得的第一保证码与对应于物理地址的逻辑地址相加的数据添加到用户数据中的数据被存储在由存储介质的物理地址指定的物理存储区域中。

    Cache data value tracking
    85.
    发明授权
    Cache data value tracking 有权
    缓存数据值跟踪

    公开(公告)号:US09213646B1

    公开(公告)日:2015-12-15

    申请号:US13922921

    申请日:2013-06-20

    IPC分类号: G06F12/12 G06F12/08

    摘要: Systems and methods are disclosed for cache data value tracking. In an embodiment, a controller may be configured to select data; set a node weight for the data representing a cache hit potential for the data; store a first time stamp value for the data representing when the data was accessed; and store the data in a cache memory based on the node weight and the first time stamp value. In another embodiment, a method may comprise setting a node weight for data associated with a data access command, storing a first access counter value for the data representing a number of times new data has been stored to the cache memory when the data was accessed, and removing the data from the cache memory or maintaining the data in the cache memory based on the node weight and the first access counter value.

    摘要翻译: 公开了用于高速缓存数据值跟踪的系统和方法。 在一个实施例中,控制器可以被配置为选择数据; 为表示数据的缓存命中潜力的数据设置节点权重; 存储表示访问数据的数据的第一时间戳值; 并且基于节点权重和第一时间戳值将数据存储在高速缓冲存储器中。 在另一个实施例中,一种方法可以包括设置与数据访问命令相关联的数据的节点权重,当访问数据时,存储表示新数据已被存储到高速缓冲存储器的次数的数据的第一访问计数器值, 以及基于节点权重和第一访问计数器值从高速缓冲存储器中移除数据或将数据保持在高速缓冲存储器中。

    DYNAMIC RESULT SET CACHING WITH A DATABASE ACCELERATOR
    87.
    发明申请
    DYNAMIC RESULT SET CACHING WITH A DATABASE ACCELERATOR 有权
    动态结果集用数据库加速器进行缓存

    公开(公告)号:US20150254245A1

    公开(公告)日:2015-09-10

    申请号:US14551845

    申请日:2014-11-24

    IPC分类号: G06F17/30

    摘要: According to one embodiment of the present invention, a system for processing a database query stores one or more result sets for one or more first database queries in a data store. The system receives a second database query and compares the second database query to the one or more first database queries to determine presence of a corresponding result set in the data store for the second database query. The system provides the corresponding result set from the data store for the second database query based on the comparison. Embodiments of the present invention further include a method and computer program product for processing a database query in substantially the same manners described above.

    摘要翻译: 根据本发明的一个实施例,用于处理数据库查询的系统在数据存储中存储一个或多个第一数据库查询的一个或多个结果集。 系统接收第二数据库查询,并将第二数据库查询与一个或多个第一数据库查询进行比较,以确定在第二数据库查询的数据存储中存在相应的结果集。 该系统基于比较从第二数据库查询的数据存储提供相应的结果集。 本发明的实施例还包括用于以与上述基本相同的方式处理数据库查询的方法和计算机程序产品。

    METHOD FOR PROTECTING STORAGE DEVICE DATA INTEGRITY IN AN EXTERNAL OPERATING ENVIRONMENT
    88.
    发明申请
    METHOD FOR PROTECTING STORAGE DEVICE DATA INTEGRITY IN AN EXTERNAL OPERATING ENVIRONMENT 审中-公开
    在外部操作环境中保护存储设备数据完整性的方法

    公开(公告)号:US20150242155A1

    公开(公告)日:2015-08-27

    申请号:US14710539

    申请日:2015-05-12

    IPC分类号: G06F3/06 G06F12/08

    摘要: Data-integrity protection of a cached storage device is provided in an alternate operating system (OS) environment by replacing an actual partition table for a disk with a dummy partition table and scrambling a predetermined amount of data on the cached storage device. The dummy partition table is designed to render data on the disk inaccessible when the dummy partition table is used by an OS to access the data. During operation, the data on the disk can be accessed using information based on the actual partition table. In response to receiving a request to disable caching, the dummy partition table on the disk is replaced with the actual partition table and any scrambled data is unscrambled, thus rendering the data on the formally cached disk accessible in an alternate OS environment where appropriate caching software is not present.

    摘要翻译: 通过用虚拟分区表替换具有虚拟分区表的磁盘的实际分区表,并在缓存存储设备上加扰预定量的数据,在备用操作系统(OS)环境中提供缓存存储设备的数据完整性保护。 当虚拟分区表被OS使用以访问数据时,虚拟分区表被设计为使得磁盘上的数据不可访问。 在操作期间,可以使用基于实际分区表的信息来访问磁盘上的数据。 响应于接收到禁用高速缓存的请求,磁盘上的虚拟分区表被替换为实际分区表,并且任何加扰的数据被解扰,从而使得在正式缓存的磁盘上的数据可在替代操作系统环境中访问,其中适当的缓存软件 不存在