Data processing resource management
    35.
    发明授权
    Data processing resource management 有权
    数据处理资源管理

    公开(公告)号:US09298507B2

    公开(公告)日:2016-03-29

    申请号:US14037367

    申请日:2013-09-26

    IPC分类号: G06F9/52 G06F9/50 G06F11/14

    摘要: In accordance with one aspect of the present description execution of a particular command by a data processor such as a storage controller, may include obtaining priority over a resource which is also associated with execution of another command, setting a timer for the duration of a dynamically set timeout period, and detecting a potential deadlock condition as a function of expiration of the dynamically set timeout period before execution of the particular command is completed. In one embodiment, the particular command releases priority over the resource upon detection of the potential deadlock condition, and then reobtains priority over the resource in a retry of the command. It is believed that such an arrangement can relieve a potential deadlock condition, allowing execution of one or more commands including the particular command to proceed. Other features and aspects may be realized, depending upon the particular application.

    摘要翻译: 根据本说明书的一个方面,由诸如存储控制器的数据处理器执行特定命令可以包括获得与资源相关的优先级,该资源也与另一命令的执行相关联,在动态的持续时间内设置定时器 设置超时周期,并且在完成特定命令的执行之前,检测作为动态设置的超时周期期满的函数的潜在死锁条件。 在一个实施例中,特定命令在检测到潜在的死锁条件时释放资源的优先级,然后在重试命令时重新获得超过资源的优先级。 相信这样的布置可以减轻潜在的死锁状况,允许执行包括特定命令的一个或多个命令进行。 可以根据具体应用实现其它特征和方面。

    BITMAP SELECTION FOR REMOTE COPYING OF UPDATES
    36.
    发明申请
    BITMAP SELECTION FOR REMOTE COPYING OF UPDATES 有权
    用于远程复制更新的BITMAP选择

    公开(公告)号:US20150286538A1

    公开(公告)日:2015-10-08

    申请号:US14746645

    申请日:2015-06-22

    IPC分类号: G06F11/14 H04L29/08

    摘要: In one embodiment of the present description, a copy relationship is established between a storage location at a first site and a storage location at a second site in a data storage system, wherein a dynamically assignable bitmap preset to one of a plurality of different predetermined bit patterns is selected as a function of both the availability of the selected bitmap and the type of predetermined bit pattern identified for the selected bitmap. The selected bitmap may be assigned as an out-of-sync bitmap wherein updates to the storage location at one site, which are to be copied to the storage location at the other site, are indicated in the selected bitmap, and data writes being written to the storage location at the one site, are copied to the storage location at the other site, using the selected bitmap as an out-of-sync bitmap. Other aspects are described.

    摘要翻译: 在本说明书的一个实施例中,在数据存储系统中的第一站点的存储位置和第二站点处的存储位置之间建立复制关系,其中预设为多个不同预定位之一的动态可分配位图 选择图案作为所选位图的可用性和为所选位图标识的预定位图案的类型的函数。 可以将所选择的位图分配为不同步位图,其中在所选位图中指示要复制到另一站点处的存储位置的一个位置处的存储位置的更新,并且写入数据写入 到一个站点的存储位置,使用所选位图作为不同步位图,将其复制到另一个站点的存储位置。 描述其他方面。

    Bitmap selection for remote copying of updates
    37.
    发明授权
    Bitmap selection for remote copying of updates 有权
    用于远程复制更新的位图选择

    公开(公告)号:US09141639B2

    公开(公告)日:2015-09-22

    申请号:US14070164

    申请日:2013-11-01

    摘要: In one embodiment of the present description, a copy relationship is established between a storage location at a first site and a storage location at a second site in a data storage system, wherein a dynamically assignable bitmap preset to one of a plurality of different predetermined bit patterns is selected as a function of both the availability of the selected bitmap and the type of predetermined bit pattern identified for the selected bitmap. The selected bitmap may be assigned as an out-of-sync bitmap wherein updates to the storage location at one site, which are to be copied to the storage location at the other site, are indicated in the selected bitmap, and data writes being written to the storage location at the one site, are copied to the storage location at the other site, using the selected bitmap as an out-of-sync bitmap. Other aspects are described.

    摘要翻译: 在本说明书的一个实施例中,在数据存储系统中的第一站点的存储位置和第二站点处的存储位置之间建立复制关系,其中预设为多个不同预定位之一的动态可分配位图 选择图案作为所选位图的可用性和为所选位图标识的预定位图案的类型的函数。 可以将所选择的位图分配为不同步位图,其中在所选位图中指示要复制到另一站点处的存储位置的一个位置处的存储位置的更新,并且写入数据写入 到一个站点的存储位置,使用所选位图作为不同步位图,将其复制到另一个站点的存储位置。 描述其他方面。

    BITMAP SELECTION FOR REMOTE COPYING OF UPDATES
    39.
    发明申请
    BITMAP SELECTION FOR REMOTE COPYING OF UPDATES 有权
    用于远程复制更新的BITMAP选择

    公开(公告)号:US20140108756A1

    公开(公告)日:2014-04-17

    申请号:US14070164

    申请日:2013-11-01

    IPC分类号: G06F3/06

    摘要: In one embodiment of the present description, a copy relationship is established between a storage location at a first site and a storage location at a second site in a data storage system, wherein a dynamically assignable bitmap preset to one of a plurality of different predetermined bit patterns is selected as a function of both the availability of the selected bitmap and the type of predetermined bit pattern identified for the selected bitmap. The selected bitmap may be assigned as an out-of-sync bitmap wherein updates to the storage location at one site, which are to be copied to the storage location at the other site, are indicated in the selected bitmap, and data writes being written to the storage location at the one site, are copied to the storage location at the other site, using the selected bitmap as an out-of-sync bitmap. Other aspects are described.

    摘要翻译: 在本说明书的一个实施例中,在数据存储系统中的第一站点的存储位置和第二站点处的存储位置之间建立复制关系,其中预设为多个不同预定位之一的动态可分配位图 选择图案作为所选位图的可用性和为所选位图标识的预定位图案的类型的函数。 可以将所选择的位图分配为不同步位图,其中在所选位图中指示要复制到另一站点处的存储位置的一个位置处的存储位置的更新,并且写入数据写入 到一个站点的存储位置,使用所选位图作为不同步位图,将其复制到另一个站点的存储位置。 描述其他方面。