Instant virtual copy to a primary mirroring portion of data
    16.
    发明授权
    Instant virtual copy to a primary mirroring portion of data 失效
    将即时虚拟副本复制到数据的主镜像部分

    公开(公告)号:US07409510B2

    公开(公告)日:2008-08-05

    申请号:US10856197

    申请日:2004-05-27

    IPC分类号: G06F13/00

    摘要: Techniques are provided for performing a copy operation. An instant virtual copy operation is issued from a first portion of data to a primary mirroring portion of data, wherein the primary mirroring portion of data corresponds to a secondary mirroring portion of data, and wherein the primary mirroring portion of data and the secondary mirroring portion of data are in a mirroring relationship. The mirroring relationship is transitioned to a duplex pending state in response to determining that the mirroring relationship is in a full duplex state. When the mirroring relationship is in a duplex pending state, each block of data involved in the instant virtual copy operation is transferred from the primary mirroring portion of data to the secondary mirroring portion of data.

    摘要翻译: 提供了执行复印操作的技术。 从数据的第一部分向数据的主镜像部分发出即时虚拟复制操作,其中数据的主镜像部分对应于数据的次镜像部分,并且其中数据的主镜像部分和次镜像部分 的数据处于镜像关系。 响应于确定镜像关系处于全双工状态,镜像关系被转换到双工挂起状态。 当镜像关系处于双工挂起状态时,即时虚拟复制操作中涉及的每个数据块从数据的主镜像部分传送到数据的次镜像部分。

    Global status journaling in NVS
    18.
    发明授权
    Global status journaling in NVS 有权
    NVS的全球状态记录

    公开(公告)号:US06854038B2

    公开(公告)日:2005-02-08

    申请号:US10163833

    申请日:2002-06-06

    IPC分类号: G06F11/07 G06F11/14 G06F12/00

    摘要: A method and system for updating status information in a persistent storage. The method comprises the steps of defining a table in persistent storage (NVS) for holding information about changes to the status information; and when that status information is changed, making an entry in the table to record the changed information. A task is initialized to update the information on the disk drive. This updating is done by (i) checking the table to determine if any changes have been recorded in the persistent storage, and (ii) if any changes have been recorded in the persistent storage, then copying the status information from the persistent storage to the disk drive.

    摘要翻译: 一种用于更新持久存储器中的状态信息的方法和系统。 该方法包括以下步骤:在持久存储器(NVS)中定义用于保存关于状态信息的改变的信息的表; 并且当该状态信息被改变时,在表中作出记录改变的信息的条目。 初始化任务以更新磁盘驱动器上的信息。 该更新通过以下步骤完成:(i)检查该表以确定是否在永久存储器中记录了任何更改,以及(ii)如果持久存储器中已经记录了任何更改,则将状态信息从永久存储器复制到 磁盘驱动器。

    Method, system, and program for remote resource management
    20.
    发明授权
    Method, system, and program for remote resource management 有权
    用于远程资源管理的方法,系统和程序

    公开(公告)号:US07363629B2

    公开(公告)日:2008-04-22

    申请号:US10465177

    申请日:2003-06-19

    IPC分类号: G06F9/46

    摘要: Provided are a method, system, and program for managing resources in which a local processor sends remote operation requests to be executed by a remote processor having multiple resources. In the illustrated embodiment, the local processor and the remote processor each have a resource manager, each of which maintains a control set for each resource of the remote processor. Each control set of the remote processor resource manager includes a queue for queuing remote operation requests awaiting execution in connection with the resource associated with the control set. Each control set of the local processor resource manager includes a credit counter which keeps track of permissible outstanding remote operation requests. Each local processor control set credit counter is decremented for each remote operation request for the associated resource sent to the remote processor and is incremented for each acknowledgment received from the remote processor. For each remote processor control set, the remote processor resource manager sends an acknowledgment for each remote operation request initiated in connection with the associated resource. For each local processor control set, the local processor resource manager queues remote operation requests if the control set credit counter falls below a threshold after being initialized in accordance with the capacity of the associated remote processor control set queue.

    摘要翻译: 提供了一种用于管理资源的方法,系统和程序,其中本地处理器发送由具有多个资源的远程处理器执行的远程操作请求。 在所示实施例中,本地处理器和远程处理器各自具有资源管理器,每个资源管理器为远程处理器的每个资源维护一个控制集。 远程处理器资源管理器的每个控制集合包括用于排队等待与控制集相关联的资源执行的远程操作请求的队列。 本地处理器资源管理器的每个控制组包括信用计数器,其记录允许的未完成的远程操作请求。 对于发送到远程处理器的相关资源的每个远程操作请求,每个本地处理器控制集信用计数器递减,并且对于从远程处理器接收的每个确认递增递增。 对于每个远程处理器控制集,远程处理器资源管理器发送与相关资源相关联的每个远程操作请求的确认。 对于每个本地处理器控制集合,如果在根据相关联的远程处理器控制集队列的容量初始化之后控制集信用计数器下降到阈值以下,则本地处理器资源管理器排队远程操作请求。