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7 条记录 (耗时 0.017 秒)

    Efficient high availability for a SCSI target over a fibre channel
    3.
    发明授权
    Efficient high availability for a SCSI target over a fibre channel 有权

    公开(公告)号：US10606715B2

    公开(公告)日：2020-03-31

    申请号：US15815058

    申请日：2017-11-16

    申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

    发明人： Shay H. Akirav ,  Oren Bar ,  Roman Barsky ,  Itay Maoz

    IPC分类号： G06F11/20 ,  G06F11/14

    摘要： For efficient high availability for a multi-node cluster using a processor device in a computing environment, using duplicate, standby host-bus adaptors (HBAs) for alternate nodes with respect to a node with the duplicate, standby HBAs using duplicate credentials of active HBAs of the node for shutting down the node, taking an active HBA of the node offline, and/or activating one of the alternate nodes. A failed node is shut down by an active one of the plurality of alternate nodes using a fence device, and all jobs of the failed node are taken over by the active node using a shared data structure including SCSI device assignments, SCSI reservations, and required host notifications.

    Efficient reclamation of pre-allocated direct memory access (DMA) memory
    6.
    发明授权
    Efficient reclamation of pre-allocated direct memory access (DMA) memory 有权
    预先分配的直接存储器访问（DMA）存储器的高效回收

    公开(公告)号：US09582223B2

    公开(公告)日：2017-02-28

    申请号：US14252146

    申请日：2014-04-14

    申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

    发明人： Shay H. Akirav ,  Oren Bar ,  Roman Barsky ,  Itay Maoz

    IPC分类号： G06F12/02 ,  G06F3/06 ,  G06F9/44 ,  G06F12/10

    CPC分类号： G06F12/1081 ,  G06F3/0683 ,  G06F9/4401

    摘要： For efficient reclamation of pre-allocated direct memory access (DMA) memory in a computing environment, hot-add random access memory (RAM) is emulated for a general purpose use by reclamation of pre-allocated DMA memory reserved at boot time for responding to an emergency by notifying a non-kernel use device user that the non-kernel use device has a smaller window, stopping and remapping to the smaller window, and notifying a kernel that new memory has been added, wherein the new memory is a region left after the remap.

    摘要翻译： 为了在计算环境中有效地回收预先分配的直接存储器访问（DMA）存储器，通过回收在引导时保留的预先分配的DMA存储器来回收热备用随机存取存储器（RAM），用于通用目的使用热附加随机存取存储器（RAM） 通过向非内核使用设备用户通知非内核使用设备具有较小的窗口，停止并重新映射到较小的窗口并通知内核已添加新的存储器的紧急情况，其中新的存储器是一个区域 后重映射。

    Securing crash dump files
    7.
    发明授权
    Securing crash dump files 有权
    保护崩溃转储文件

    公开(公告)号：US09396054B2

    公开(公告)日：2016-07-19

    申请号：US14639726

    申请日：2015-03-05

    申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

    发明人： Shay Akirav ,  Roman Barsky ,  Rafael Buchbinder ,  Dan Melamed

    IPC分类号： G06F11/00 ,  G06F11/07 ,  G06F11/34 ,  G06F11/16

    CPC分类号： G06F11/0778 ,  G06F11/0727 ,  G06F11/1612 ,  G06F11/348

    摘要： In a computer storage system, crash dump files are secured without power fencing in a cluster of a plurality of nodes connected to a storage system. Upon an occurrence of a panic of a crashing node and prior to receiving a panic message of the crashing node by a surviving node loading, in the cluster, a capturing node to become active, prior to a totem token being declared lost by the surviving node, for capturing the crash dump files of the crashing node, while restricting the capturing node from gaining access to the storage system for preventing unsynchronized access to the storage system in order to prevent data corruption.

    摘要翻译： 在计算机存储系统中，崩溃转储文件在连接到存储系统的多个节点的集群中没有电源防护的情况下被保护。 在发生崩溃节点的紧急情况并且在幸存的节点加载之前在群集中接收到崩溃节点的紧急消息之前，在图腾令牌被幸存的节点丢失之前，捕获节点变为活动的 ，用于捕获崩溃节点的故障转储文件，同时限制捕获节点访问存储系统，以防止对存储系统的不同步访问，以防止数据损坏。