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    • 5. 发明授权
    • Storage system with incremental multi-dimensional RAID
    • 带增量多维RAID的存储系统
    • US08341342B1
    • 2012-12-25
    • US13428817
    • 2012-03-23
    • Jeffrey S. BonwickWilliam H. Moore
    • Jeffrey S. BonwickWilliam H. Moore
    • G06F12/00
    • G06F11/1076G06F2211/1057
    • A method for storing data including receiving a request to write data and in response the request, selecting a RAID grid location in a RAID grid to write the data. The method further includes writing the data to memory, updating a data structure to indicate that the RAID grid location is filled, identifying a parity value in the RAID grid to update, where the parity value is associated with a second RAID grid location in the RAID grid, updating the parity value using the data and the parity value to obtain an updated parity value and storing the updated parity value in the memory. Prior to the first data grid being filled determining a physical address in persistent storage corresponding to the RAID grid location and writing the data to the first physical address.
    • 一种用于存储数据的方法,包括接收写入数据的请求,并且响应该请求,在RAID网格中选择RAID网格位置以写入数据。 该方法还包括将数据写入存储器,更新数据结构以指示RAID网格位置被填充,识别RAID网格中的奇偶校验值进行更新,其中奇偶校验值与RAID中的第二RAID网格位置相关联 网格,使用数据和奇偶校验值来更新奇偶校验值,以获得更新的奇偶校验值,并将更新的奇偶校验值存储在存储器中。 在第一数据网格被填充之前,确定与RAID网格位置相对应的持久存储器中的物理地址,并将数据写入第一物理地址。
    • 7. 发明授权
    • Method and system for repairing partially damaged blocks
    • 修复部分损坏块的方法和系统
    • US07716519B2
    • 2010-05-11
    • US11406578
    • 2006-04-19
    • William H. MooreJeffrey S. Bonwick
    • William H. MooreJeffrey S. Bonwick
    • G06F11/00
    • G11B20/1803G06F11/1076G06F2211/1014G06F2211/1059G11B20/1833
    • A method for reconstructing a logical block, wherein the logical block comprises a first set of sectors. The method including obtaining a copy of the logical block comprising a second set of sectors, determining which of the sectors in the first set of sectors are identical to sectors in the second set of sectors to obtain identical sectors, selecting a first combination of non-identical sectors from the first set of sectors and the second set of sectors, combining a copy of each of the identical sectors with the first combination of non-identical sectors to obtain a first reconstructed logical block, calculating a first checksum for the first reconstructed logical block, and determining whether the first calculated checksum is equal to the stored checksum associated with the first logical block.
    • 一种用于重建逻辑块的方法,其中所述逻辑块包括第一组扇区。 该方法包括获得包括第二组扇区的逻辑块的副本,确定第一组扇区中的哪个扇区与第二组扇区中的扇区相同以获得相同的扇区,选择非均匀扇区的第一组合, 从第一组扇区和第二组扇区相同的扇区,将每个相同扇区的副本与非相同扇区的第一组合组合以获得第一重构逻辑块,计算第一重构逻辑的第一校验和 并且确定所述第一计算的校验和是否等于与所述第一逻辑块相关联的所存储的校验和。
    • 9. 发明授权
    • Adaptive replacement cache
    • 自适应替换缓存
    • US07469320B2
    • 2008-12-23
    • US11417078
    • 2006-05-03
    • Jeffrey S. BonwickWilliam H. MooreMark J. MaybeeMatthew A. Ahrens
    • Jeffrey S. BonwickWilliam H. MooreMark J. MaybeeMatthew A. Ahrens
    • G06F12/00
    • G06F12/122G06F12/0802G06F12/123
    • A method for caching a block, which includes receiving a request to store the block in a cache and determining whether the cache is able to expand. If the cache is not able to expand, then determining whether evictable blocks are present in the cache and, if evictable blocks are present in the cache determining whether a total size of the evictable blocks is greater than or equal to a size of the block, evicting a sufficient number of the evictable blocks from the cache and storing the block in the cache, if the total size of the evictable blocks is greater than or equal to the size of the block, and activating a cache throttle, if the total size of the evictable blocks is less than the size of the block.
    • 一种用于缓存块的方法,其包括接收将所述块存储在高速缓存中并且确定所述高速缓存是否能够扩展的请求。 如果高速缓存不能扩展,则确定可缓存块是否存在于高速缓存中,并且如果可缓存的块存在于高速缓存中,确定可驱动块的总大小是否大于或等于块的大小, 如果所述可驱动块的总大小大于或等于所述块的大小,并将所述块存储在所述高速缓存中,则将所述可驱动块的足够数量从所述高速缓存中驱出并将所述块存储在所述高速缓存中,并且如果所述块的总大小 可驱动的块小于块的大小。