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    • 35. 发明授权
    • Method to recover from ungrouped logical path failures
    • 从未分组的逻辑路径故障中恢复的方法
    • US07996707B2
    • 2011-08-09
    • US12179862
    • 2008-07-25
    • Juan A. CoronadoRoger G. HathornBret W. HolleyDaniel J. PerkinDinh H. Le
    • Juan A. CoronadoRoger G. HathornBret W. HolleyDaniel J. PerkinDinh H. Le
    • G06F11/00
    • G06F11/0793G06F11/0727G06F11/201
    • A system and method for recovering from a single logical path failure. More specifically, although a host has not grouped its logical paths, the host knows which logical paths it has available. When a host detects a logical path failure, the host enters a path discovery mode of operation. If the host continues to detect a logical path failure while operating in the logical path discovery mode of operation, the host removes the logical path from a logical path mask, and the host does not use the removed logical path again. In the case of ungrouped logical paths, the host aborts its process because it does not have more paths available to continue its process. Additionally, in certain embodiments, a pseudo path group for ungrouped logical paths is created.
    • 用于从单个逻辑路径故障恢复的系统和方法。 更具体地说,尽管主机没有对其逻辑路径进行分组,但主机知道其可用的逻辑路径。 当主机检测到逻辑路径故障时,主机将进入路径发现操作模式。 如果在逻辑路径发现操作模式下主机继续检测到逻辑路径故障,则主机从逻辑路径掩码中删除逻辑路径,并且主机不再使用已删除的逻辑路径。 在未分组的逻辑路径的情况下,主机中止其进程,因为它没有更多可用的路径来继续其进程。 另外,在某些实施例中,创建用于未分组的逻辑路径的伪路径组。
    • 36. 发明授权
    • Avoiding failure of an initial program load in a logical partition of a data storage system
    • 避免数据存储系统的逻辑分区中的初始程序加载失败
    • US07853758B2
    • 2010-12-14
    • US11837880
    • 2007-08-13
    • Brian D. ClarkJuan A. CoronadoBeth A. Peterson
    • Brian D. ClarkJuan A. CoronadoBeth A. Peterson
    • G06F12/00G06F13/00G06F13/28
    • G06F9/45533G06F9/4401
    • An initial program load (IPL) of a logical partition (LPAR) is managed by establishing a logical path to the LPAR from a storage controller. When a notice is received by the storage controller from the LPAR that the IPL has commenced, the LPAR address is stored in a data structure. After the storage controller initiates a pack change state interrupt, the stored address is compared with the addresses in a list of all LPARS to which the interrupt is directed. If the list of addresses includes the stored address, the stored address is removed from the list. Thus, the pack change state interrupt is transmitted only to the addresses in the list, leaving the LPAR to complete the IPL without interruption. After the storage controller receives a notice from the LPAR that the IPL has completed, the address of the LPAR is removed from the data structure.
    • 通过从存储控制器建立到LPAR的逻辑路径来管理逻辑分区(LPAR)的初始程序加载(IPL)。 当存储控制器从LPAR接收到IPL已经开始的通知时,LPAR地址被存储在数据结构中。 存储控制器启动包更改状态中断后,将存储的地址与中断所针对的所有LPARS列表中的地址进行比较。 如果地址列表包含存储的地址,则从列表中删除存储的地址。 因此,包改变状态中断仅发送到列表中的地址,使LPAR不间断地完成IPL。 在存储控制器从LPAR接收到IPL已经完成的通知之后,从数据结构中删除LPAR的地址。