Data integrity mechanism for external storage devices
    91.
    发明授权
    Data integrity mechanism for external storage devices 失效
    外部存储设备的数据完整性机制

    公开(公告)号:US08782014B2

    公开(公告)日:2014-07-15

    申请号:US12780662

    申请日:2010-05-14

    IPC分类号: G06F17/30

    摘要: A method for maintaining data integrity of a storage device is provided. A request is received to create an access monitoring session for a data range on a volume of the storage device. A session identification (ID) is determined for the access monitoring session for data range on the volume. An entry is created in an access monitoring session table for the session ID, and the entry adds the access monitoring session with session ID for the data range on the volume to the access monitoring session table. Request parameters are included in the request to create the access monitoring session. The request parameters denote access to the data range on the volume for the session ID and are stored in the access monitoring session table. Access is controlled to the data range on the volume for the session ID based on request parameters stored in the access monitoring session table.

    摘要翻译: 提供了一种用于维护存储设备的数据完整性的方法。 接收到请求以创建存储设备的卷上的数据范围的访问监视会话。 针对卷上的数据范围,为访问监视会话确定会话标识(ID)。 在会话ID的访问监控会话表中创建一个条目,并且该条目将访问监视会话与该卷上的数据范围的会话ID添加到访问监控会话表。 请求参数包括在创建访问监视会话的请求中。 请求参数表示访问会话ID的卷上的数据范围,并存储在访问监控会话表中。 根据访问监控会话表中存储的请求参数,将访问控制到会话ID的卷上的数据范围。

    Proactively removing channel paths in error from a variable scope of I/O devices
    92.
    发明授权
    Proactively removing channel paths in error from a variable scope of I/O devices 失效
    主动从可变范围的I / O设备中删除错误中的通道路径

    公开(公告)号:US08719626B2

    公开(公告)日:2014-05-06

    申请号:US13247684

    申请日:2011-09-28

    IPC分类号: G06F11/00

    摘要: A channel path error correction system includes a processor with one or more channels and a switch operatively coupled to the one or more channels of the processor. The system also includes an I/O device including one or more ports, the I/O device being operatively coupled to the switch by the one or more ports; a plurality of control units. Each control unit includes at least one of the channels and at least one of the ports and a memory operable for storing information relating to detected channel path errors associated with each of the plurality of control units.

    摘要翻译: 信道路径误差校正系统包括具有一个或多个信道的处理器和可操作地耦合到处理器的一个或多个信道的开关。 所述系统还包括包括一个或多个端口的I / O设备,所述I / O设备由所述一个或多个端口可操作地耦合到所述交换机; 多个控制单元。 每个控制单元包括至少一个通道和至少一个端口,以及存储器,可操作用于存储与检测到的与多个控制单元中的每一个相关联的通道路径错误的信息。

    Methods and computer program products for swapping synchronous replication secondaries from a subchannel set other than zero to subchannel set zero using dynamic I/O
    95.
    发明授权
    Methods and computer program products for swapping synchronous replication secondaries from a subchannel set other than zero to subchannel set zero using dynamic I/O 有权
    方法和计算机程序产品用于从零通道以外的子通道集合交换同步复制次级到使用动态I / O的子通道设置零

    公开(公告)号:US08307129B2

    公开(公告)日:2012-11-06

    申请号:US12013659

    申请日:2008-01-14

    IPC分类号: G06F3/00 G06F11/00

    CPC分类号: G06F11/2087 G06F11/2069

    摘要: Exemplary embodiments relate to a method for swapping PPRC secondary device definitions from a subchannel set other than zero to subchannel set zero. The method comprises identifying a PPRC primary and secondary device, wherein the PPRC primary device definitions reside at subchannel set zero and the PPRC secondary device definitions reside at a subchannel set other than subchannel set zero, initiating a PPRC device definition substitution operation to substitute the PPRC primary device definitions within the subchannel set where the PPRC secondary device definition resides and substitute the PPRC secondary device definitions within the subchannel set where the PPRC primary device definitions resides, storing the control block information for each PPRC device whose device definitions are to be substituted, and storing the PPRC primary device definitions within the subchannel set where the PPRC secondary device definition resides and storing the PPRC secondary device definitions within subchannel set zero.

    摘要翻译: 示例性实施例涉及用于将PPRC辅助设备定义从不同于0的子信道集合交换到子信道设置为零的方法。 该方法包括识别PPRC主设备和辅助设备,其中PPRC主设备定义位于子信道设置为零,并且PPRC辅助设备定义驻留在除子信道设置为零之外的子信道集上,启动PPRC设备定义替换操作以替代PPRC 在PPRC辅助设备定义所在的子信道集中的主要设备定义,并替代PPRC主设备定义所在的子信道集中的PPRC辅助设备定义,存储要替代设备定义的每个PPRC设备的控制块信息, 并将PPRC主要设备定义存储在PPRC辅助设备定义所在的子信道集中,并将PPRC辅助设备定义存储在子信道设置为零中。

    Sharing of data across disjoint clusters
    96.
    发明授权
    Sharing of data across disjoint clusters 有权
    在不相交的群集之间共享数据

    公开(公告)号:US08161128B2

    公开(公告)日:2012-04-17

    申请号:US12639338

    申请日:2009-12-16

    IPC分类号: G06F13/00

    CPC分类号: G06F9/526 G06F2209/523

    摘要: Methods and devices are provided for sharing data across two or more different clusters. An operating system (OS) in a cluster checks a metadata record of a file system of a shared device to retrieve path group identifiers (PGIDs). A control unit list of the shared device is checked to retrieve PGIDs that are active on the shared device. An input/output supervisor (IOS) record in a couple dataset is checked to retrieve PGIDs in the cluster. The metadata record, control unit list, and IOS record are compared, and if a PGID is found in the metadata record that is not in the IOS record and if the found PGID is not in the control unit list, the found PGID is not active on the shared device. The found PGID of the different cluster is removed from metadata record, and members of the cluster can R/W to file system.

    摘要翻译: 提供了用于在两个或多个不同集群之间共享数据的方法和设备。 集群中的操作系统(OS)检查共享设备的文件系统的元数据记录以检索路径组标识符(PGID)。 检查共享设备的控制单元列表以检索共享设备上活动的PGID。 检查几个数据集中的输入/输出监视器(IOS)记录以检索集群中的PGID。 比较元数据记录,控制单元列表和IOS记录,并且如果在不在IOS记录中的元数据记录中找到PGID,并且如果找到的PGID不在控制单元列表中,则找到的PGID不活动 在共享设备上。 从元数据记录中删除不同集群的已找到的PGID,并且集群的成员可以将R / W转换为文件系统。

    DATA INTEGRITY MECHANISM FOR EXTERNAL STORAGE DEVICES
    97.
    发明申请
    DATA INTEGRITY MECHANISM FOR EXTERNAL STORAGE DEVICES 失效
    外部存储设备的数据完整性机制

    公开(公告)号:US20110282846A1

    公开(公告)日:2011-11-17

    申请号:US12780662

    申请日:2010-05-14

    IPC分类号: G06F17/30

    摘要: A method for maintaining data integrity of a storage device is provided. A request is received to create an access monitoring session for a data range on a volume of the storage device. A session identification (ID) is determined for the access monitoring session for data range on the volume. An entry is created in an access monitoring session table for the session ID, and the entry adds the access monitoring session with session ID for the data range on the volume to the access monitoring session table. Request parameters are included in the request to create the access monitoring session. The request parameters denote access to the data range on the volume for the session ID and are stored in the access monitoring session table. Access is controlled to the data range on the volume for the session ID based on request parameters stored in the access monitoring session table.

    摘要翻译: 提供了一种用于维护存储设备的数据完整性的方法。 接收到请求以创建存储设备的卷上的数据范围的访问监视会话。 针对卷上的数据范围,为访问监视会话确定会话标识(ID)。 在会话ID的访问监控会话表中创建一个条目,并且该条目将访问监视会话与该卷上的数据范围的会话ID添加到访问监控会话表。 请求参数包括在创建访问监视会话的请求中。 请求参数表示访问会话ID的卷上的数据范围,并存储在访问监控会话表中。 根据访问监控会话表中存储的请求参数,将访问控制到会话ID的卷上的数据范围。

    Determination of the degree of common usage for elements of a data processing system
    100.
    发明授权
    Determination of the degree of common usage for elements of a data processing system 有权
    确定数据处理系统元素的常用用途程度

    公开(公告)号:US06647515B1

    公开(公告)日:2003-11-11

    申请号:US09676825

    申请日:2000-10-02

    IPC分类号: H04L122

    CPC分类号: H04L1/22

    摘要: A method and apparatus for determining common usage of elements among at least two channels in a data processing system having an arbitrary hardware element hierarchy including multiple channel paths over which data is transmitted. An internally executed initialization program builds a bit mask for channel paths to be compared wherein the bit masks describe the hierarchy of the hardware elements in the channel paths to be compared. A compare program provides a comparison result whose value reflects the impact of the failure of hardware elements that are common to the channel path being compared. The comparison results contains multiple bits, with set bits representing each element which is common to the hardware element common to the channel paths being compared. The impact of a failure of a common hardware element is greater the more significant the bit position of that component resides in the comparison results.

    摘要翻译: 一种用于确定数据处理系统中的至少两个信道中的元素的共同使用的方法和装置,所述数据处理系统具有包括多个信道路径的任意硬件元素层级,所述多个信道路径被 内部执行的初始化程序构建要比较的通道路径的位掩码,其中位掩码描述要比较的通道路径中的硬件元件的层级。 比较程序提供了比较结果,其值反映了被比较的通道路径所共有的硬件元件的故障的影响。 比较结果包含多个比特,其中设置的比特表示被比较的信道路径共有的硬件元素所共有的每个元素。 普通硬件元件出现故障的影响越大,该组件的位位置越大,比较结果就越显着。