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    • 6. 发明申请
    • APPARATUS, SYSTEM, AND METHOD FOR ATOMIC STORAGE OPERATIONS
    • 用于原子存储操作的装置,系统和方法
    • US20140237159A9
    • 2014-08-21
    • US13193559
    • 2011-07-28
    • David FlynnStephan UphoffXiangyong OuyangDavid NellansRobert Wipfel
    • David FlynnStephan UphoffXiangyong OuyangDavid NellansRobert Wipfel
    • G06F12/00
    • G06F12/0815G06F3/0619G06F3/0643G06F3/0679G06F3/0688G06F11/1471G06F12/0246G06F2212/7201G06F2212/7207
    • A virtual storage layer (VSL) for a non-volatile storage device presents a logical address space of a non-volatile storage device to storage clients. Storage metadata assigns logical identifiers in the logical address space to physical storage locations on the non-volatile storage device. Data is stored on the non-volatile storage device in a sequential log-based format. Data on the non-volatile storage device comprises an event log of the storage operations performed on the non-volatile storage device. The VSL presents an interface for requesting atomic storage operations. Previous versions of data overwritten by the atomic storage device are maintained until the atomic storage operation is successfully completed. Data pertaining to a failed atomic storage operation may be identified using a persistent metadata flag stored with the data on the non-volatile storage device. Data pertaining to failed or incomplete atomic storage requests may be invalidated and removed from the non-volatile storage device.
    • 用于非易失性存储设备的虚拟存储层(VSL)向存储客户端呈现非易失性存储设备的逻辑地址空间。 存储元数据将逻辑地址空间中的逻辑标识符分配给非易失性存储设备上的物理存储位置。 数据以顺序的基于日志的格式存储在非易失性存储设备上。 非易失性存储设备上的数据包括在非易失性存储设备上执行的存储操作的事件日志。 VSL提供了一个用于请求原子存储操作的接口。 保留由原子存储设备覆盖的以前版本的数据,直到原子存储操作成功完成。 可以使用与非易失性存储设备上的数据一起存储的持久性元数据标志来识别与故障原子存储操作有关的数据。 关于故障或不完整的原子存储请求的数据可能无效,并从非易失性存储设备中删除。
    • 8. 发明申请
    • APPARATUS, SYSTEM, AND METHOD FOR ALLOCATING STORAGE
    • 用于分配存储的装置,系统和方法
    • US20140101375A1
    • 2014-04-10
    • US14072697
    • 2013-11-05
    • Jonathan ThatcherDavid Flynn
    • Jonathan ThatcherDavid Flynn
    • G06F12/02
    • G06F12/0246G06F3/0604G06F3/0626G06F3/064G06F3/0671G06F12/0238G06F12/0292G06F2212/7201G06F2212/7204
    • An apparatus, system, and method are disclosed for allocating non-volatile storage. The storage device may present a logical address, which may exceed a physical storage capacity of the device. The storage device may allocate logical capacity in the logical address space. An allocation request may be allowed when there is sufficient unassigned and/or unallocated logical capacity to satisfy the request. Data may be stored on the non-volatile storage device by requesting physical storage capacity. A physical storage request, such as a storage request or physical storage reservation, when there is sufficient available physical storage capacity to satisfy the request. The device may maintain an index to associate logical identifiers (LIDs) in the logical address space with storage locations on the storage device. This index may be used to make logical capacity allocations and/or to manage physical storage space.
    • 公开了用于分配非易失性存储器的装置,系统和方法。 存储设备可以呈现可能超过设备的物理存储容量的逻辑地址。 存储设备可以在逻辑地址空间中分配逻辑容量。 当有足够的未分配和/或未分配的逻辑容量来满足请求时,可以允许分配请求。 可以通过请求物理存储容量将数据存储在非易失性存储设备上。 物理存储请求,如存储请求或物理存储预留,当有足够的可用物理存储容量来满足请求时。 设备可以维护索引以将逻辑地址空间中的逻辑标识符(LID)与存储设备上的存储位置相关联。 该索引可用于进行逻辑容量分配和/或管理物理存储空间。