Method and apparatus for preserving memory contents during a power outage
    1.
    发明授权
    Method and apparatus for preserving memory contents during a power outage 有权
    在停电期间保存存储器内容的方法和装置

    公开(公告)号:US08266398B2

    公开(公告)日:2012-09-11

    申请号:US12125712

    申请日:2008-05-22

    IPC分类号: G06F13/00 G06F13/28

    CPC分类号: G06F1/30

    摘要: A method and apparatus for preserving contents of a volatile memory when a main (e.g., AC) power source is disconnected. The apparatus comprises flash memory, a controller for writing to the flash memory and a temporary power source. The temporary power source may be a relatively low power battery or supercapacitor. The apparatus is removably attached to a computing device (e.g., via a USB port). When main power of the device is disconnected, the temporary power source provides power for the apparatus, the volatile memory containing data to be safeguarded, and sufficient processing resources to transfer the data. For example, an auxiliary processor may be powered (instead of a relatively high-power processor) or just one core of a multi-core processor. Data are written to the apparatus and can be recovered when main power is reconnected. Or, the apparatus may be detached and attached to a different device for data recovery.

    摘要翻译: 当主(例如AC)电源断开时用于保存易失性存储器的内容的方法和装置。 该装置包括闪速存储器,用于写入闪速存储器的控制器和临时电源。 临时电源可以是相对低功率的电池或超级电容器。 该装置可移除地附接到计算设备(例如,经由USB端口)。 当设备的主电源断开时,临时电源为设备提供电力,包含要保护的数据的易失性存储器以及传送数据的足够的处理资源。 例如,辅助处理器可以被供电(而不是相对高功率的处理器)或者仅仅是多核处理器的一个核心。 数据被写入设备,并可以在主电源重新连接时恢复。 或者,可以将设备分离并附接到不同的设备以进行数据恢复。

    METHOD AND APPARATUS FOR PRESERVING MEMORY CONTENTS DURING A POWER OUTAGE
    2.
    发明申请
    METHOD AND APPARATUS FOR PRESERVING MEMORY CONTENTS DURING A POWER OUTAGE 有权
    在断电期间保存存储器内容的方法和装置

    公开(公告)号:US20090292887A1

    公开(公告)日:2009-11-26

    申请号:US12125712

    申请日:2008-05-22

    IPC分类号: G06F12/00

    CPC分类号: G06F1/30

    摘要: A method and apparatus for preserving contents of a volatile memory when a main (e.g., AC) power source is disconnected. The apparatus comprises flash memory, a controller for writing to the flash memory and a temporary power source. The temporary power source may be a relatively low power battery or supercapacitor. The apparatus is removably attached to a computing device (e.g., via a USB port). When main power of the device is disconnected, the temporary power source provides power for the apparatus, the volatile memory containing data to be safeguarded, and sufficient processing resources to transfer the data. For example, an auxiliary processor may be powered (instead of a relatively high-power processor) or just one core of a multi-core processor. Data are written to the apparatus and can be recovered when main power is reconnected. Or, the apparatus may be detached and attached to a different device for data recovery.

    摘要翻译: 当主(例如AC)电源断开时用于保存易失性存储器的内容的方法和装置。 该装置包括闪速存储器,用于写入闪速存储器的控制器和临时电源。 临时电源可以是相对低功率的电池或超级电容器。 该装置可移除地附接到计算设备(例如,经由USB端口)。 当设备的主电源断开时,临时电源为设备提供电力,包含要保护的数据的易失性存储器以及传送数据的足够的处理资源。 例如,辅助处理器可以被供电(而不是相对高功率的处理器)或者仅仅是多核处理器的一个核心。 数据被写入设备,并可以在主电源重新连接时恢复。 或者,可以将设备分离并附接到不同的设备以进行数据恢复。

    Scalable storage system
    3.
    发明授权
    Scalable storage system 失效
    可扩展存储系统

    公开(公告)号:US07237027B1

    公开(公告)日:2007-06-26

    申请号:US09709187

    申请日:2000-11-10

    IPC分类号: G06F15/173

    摘要: According to one embodiment, a storage system (400) may include a gateway service (402), metadata service (404) and storage service (406) that each provide different storage system functions. Each service (402, 404 and 406) may include a plurality of servers that are functionally de-coupled from one another. De-coupled servers may service requests without regard to the operation of other servers of the same service. Such a de-coupled arrangement can allow a storage system (400) to be scaled to meet increasing demands, as servers may be added to a system, on a service by service basis, without necessarily re-indexing stored information or reconfiguring multiple instances of a server application. Further, backup servers may be easily added to the system to enable fault tolerance. Servers of a particular service (402, 404 and 406) may be accessed according to a quality of service policy.

    摘要翻译: 根据一个实施例,存储系统(400)可以包括网关服务(402),元数据服务(404)和存储服务(406),每个提供不同的存储系统功能。 每个服务(402,404和406)可以包括在功能上彼此不耦合的多个服务器。 解耦服务器可以服务请求,而不考虑同一服务的其他服务器的操作。 这样的去耦合布置可以允许存储系统(400)被缩放以满足日益增长的需求,因为可以在服务基础上将服务器添加到系统,而不必重新索引所存储的信息或重新配置多个实例 一个服务器应用程序。 此外,可以轻松地将备份服务器添加到系统以实现容错。 可以根据服务质量策略访问特定服务(402,404和406)的服务器。

    Storage system having partitioned migratable metadata
    4.
    发明授权
    Storage system having partitioned migratable metadata 失效
    具有分区可迁移元数据的存储系统

    公开(公告)号:US07146377B2

    公开(公告)日:2006-12-05

    申请号:US10431168

    申请日:2003-05-06

    IPC分类号: G06F17/30

    摘要: According to one embodiment, a metadata management system (MDS) may include partitioned migratable metadata. Metadata may be stored in multiple metadata partitions (102-0 to 102-11). Each metadata partition may be assigned to a particular system resource (104-0 to 104-5). According to predetermined policies, such as metadata aging, metadata stored in one metadata partition may be migrated to a different metadata partition. A forwarding object can be placed in the old metadata partition to indicate the new location of the migrated metadata. Metadata partitions (102-0 to 102-11) may be reassigned to different resources, split and/or merged allowing a high degree of scalability, as well as flexibility in meeting storage system needs.

    摘要翻译: 根据一个实施例,元数据管理系统(MDS)可以包括分区的可迁移元数据。 元数据可以存储在多个元数据分区(102 - 0到102 - 11)中。 每个元数据分区可以被分配给特定系统资源(104-0至104-5)。 根据诸如元数据老化的预定策略,存储在一个元数据分区中的元数据可以迁移到不同的元数据分区。 转发对象可以放置在旧的元数据分区中,以指示迁移的元数据的新位置。 元数据分区(102 - 0到102 - 11)可以重新分配给不同的资源,分割和/或合并,允许高度的可扩展性,以及满足存储系统需求的灵活性。