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    • 7. 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
    • US20150058547A1
    • 2015-02-26
    • US14533779
    • 2014-11-05
    • 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。
    • 10. 发明授权
    • Apparatus, system, and method for caching data on a solid-state storage device
    • 用于在固态存储设备上缓存数据的装置,系统和方法
    • US08719501B2
    • 2014-05-06
    • US12877971
    • 2010-09-08
    • David FlynnJohn StrasserJonathan ThatcherDavid AtkissonMichael ZappeJoshua AuneKevin B. Vigor
    • David FlynnJohn StrasserJonathan ThatcherDavid AtkissonMichael ZappeJoshua AuneKevin B. Vigor
    • G06F12/00
    • G06F12/0246G06F12/0866G06F2212/214G06F2212/7201G06F2212/7205G06F2212/7207
    • An apparatus, system, and method are disclosed for caching data on a solid-state storage device. The solid-state storage device maintains metadata pertaining to cache operations performed on the solid-state storage device, as well as storage operations of the solid-state storage device. The metadata indicates what data in the cache is valid, as well as information about what data in the nonvolatile cache has been stored in a backing store. A backup engine works through units in the nonvolatile cache device and backs up the valid data to the backing store. During grooming operations, the groomer determines whether the data is valid and whether the data is discardable. Data that is both valid and discardable may be removed during the grooming operation. The groomer may also determine whether the data is cold in determining whether to remove the data from the cache device. The cache device may present to clients a logical space that is the same size as the backing store. The cache device may be transparent to the clients.
    • 公开了用于在固态存储设备上缓存数据的装置,系统和方法。 固态存储装置保持关于在固态存储装置上执行的高速缓存操作的元数据以及固态存储装置的存储操作。 元数据指示高速缓存中的数据是有效的,以及关于非易失性缓存中的哪些数据已经存储在后备存储中的信息。 备份引擎通过非易失性缓存设备中的单元进行工作,并将有效数据备份到后备存储。 在修饰操作期间,groomer确定数据是否有效以及数据是否可以丢弃。 有效和可丢弃的数据在整理操作期间可能会被删除。 在确定是否从高速缓存设备移除数据时,groomer还可以确定数据是否冷。 高速缓存设备可以向客户端呈现与后备存储大小相同的逻辑空间。 高速缓存设备对客户端可能是透明的。