Data verification following database write
    1.
    发明授权
    Data verification following database write 有权
    数据库写入后的数据验证

    公开(公告)号:US07627619B1

    公开(公告)日:2009-12-01

    申请号:US10749692

    申请日:2003-12-29

    IPC分类号: G06F17/30

    摘要: A method for processing a request from a host to write a database record to a target location on a logical device associated with a data-storage system in data communication with the host includes maintaining, at the data storage system, information identifying extents of the logical device that are designated for storage of database records, and, on the basis of the information, determining whether the target location is one on which a database record is permitted to be stored.

    摘要翻译: 一种用于处理来自主机的请求以将数据库记录写入到与主机进行数据通信的与数据存储系统相关联的逻辑设备上的目标位置的方法包括在数据存储系统处维护识别逻辑的区段的信息 设备,其被指定用于存储数据库记录,并且基于该信息,确定目标位置是否允许数据库记录被存储在其上。

    Database verification following database write
    2.
    发明授权
    Database verification following database write 有权
    数据库编写后的数据库验证

    公开(公告)号:US08352439B1

    公开(公告)日:2013-01-08

    申请号:US10861830

    申请日:2004-06-03

    IPC分类号: G06F7/00 G06F17/00

    CPC分类号: G06F17/30091 G06F11/1004

    摘要: A method for processing a write instruction for writing data to a database stored on a logical device includes obtaining first and second addresses that specify the location of the data in respective first and second address spaces. A third address corresponding to an expected location of the data record in the first address space is then calculated. On the basis of a comparison between the first address and the third address, a determination is made as to whether to execute the write instruction.

    摘要翻译: 一种用于处理将数据写入存储在逻辑设备上的数据的写入指令的方法包括获得在相应的第一和第二地址空间中指定数据的位置的第一和第二地址。 然后计算与第一地址空间中的数据记录的预期位置相对应的第三地址。 基于第一地址和第三地址之间的比较,确定是否执行写指令。

    Data operation validation
    3.
    发明授权
    Data operation validation 有权
    数据操作验证

    公开(公告)号:US07673115B1

    公开(公告)日:2010-03-02

    申请号:US11229976

    申请日:2005-09-19

    摘要: Described are techniques for processing a data operation. A data operation is received at a data storage system. The data operation requests a modification of data stored in the data storage system. A first address is obtained that represents a starting address of the data operation. A calculation is performed representing a boundary condition of the starting address of the data operation. Based on the calculation, it is determined whether the data operation has a starting address which is properly aligned.

    摘要翻译: 描述了用于处理数据操作的技术。 在数据存储系统处接收数据操作。 数据操作请求修改存储在数据存储系统中的数据。 获得表示数据操作的起始地址的第一地址。 执行表示数据操作的起始地址的边界条件的计算。 基于该计算,确定数据操作是否具有正确对准的起始地址。

    Techniques for performing host path detection verification
    5.
    发明授权
    Techniques for performing host path detection verification 有权
    执行主机路径检测验证的技术

    公开(公告)号:US08301812B1

    公开(公告)日:2012-10-30

    申请号:US13065549

    申请日:2011-03-24

    IPC分类号: G06F13/38 G06F15/173

    摘要: Described are techniques for verifying host path detection. First information from a first data storage system is received indicating a first set of one or more hosts and, for each host in the first set, which one or more devices of a first device set of the first data storage system are accessible to said each host in the first set over one or more associated paths to the first data storage system. Second information and the first information are received at a second data storage system. First processing is performed at the second data system to determine whether each host included in the first information has successfully completed path detection with respect to a second device set for the second data storage system.

    摘要翻译: 描述了用于验证主机路径检测的技术。 接收来自第一数据存储系统的第一信息指示一个或多个主机的第一组,并且对于第一组中的每个主机,第一数据存储系统的第一设备组的哪一个或多个设备可被所述每个主机访问 主机在第一组中超过与第一数据存储系统相关的一个或多个相关联的路径。 在第二数据存储系统中接收第二信息和第一信息。 在第二数据系统执行第一处理,以确定包括在第一信息中的每个主机是否相对于第二数据存储系统的第二设备集成功完成了路径检测。

    Tracking copy sessions
    6.
    发明授权
    Tracking copy sessions 有权
    跟踪复制会话

    公开(公告)号:US09483355B1

    公开(公告)日:2016-11-01

    申请号:US13537642

    申请日:2012-06-29

    摘要: Maintaining a set of extents corresponding to a portion of an initial logical volume that is to be copied includes initializing a table having entries corresponding to different portions of the initial logical volume, where each of the entries is initialized with a first value, following initializing the table, providing a second value different from the first value to an entry in the table corresponding to a portion of the initial logical volume to which a write operation is performed and establishing the set of extents, where the first value is provided to entries in the table that correspond to portions of the initial logical device indicated by the extents. Data of the initial logical volume corresponding to the set of extents may be copied to at least one other logical volume.

    摘要翻译: 保持对应于要复制的初始逻辑卷的一部分的扩展区包括初始化具有对应于初始逻辑卷的不同部分的条目的表,其中每个条目被初始化为第一值, 表,将与第一值不同的第二值提供给与执行写入操作的初始逻辑卷的一部分相对应的表中的条目,并建立扩展区集合,其中第一个值被提供给 表对应于由盘区指示的初始逻辑设备的部分。 对应于扩展区集合的初始逻辑卷的数据可以被复制到至少一个其他逻辑卷。