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1. 发明申请

WO2012052800A8 TWO STAGE CHECKSUMMED RAID STORAGE MODEL 审中-公开
标题翻译：两级检查RAID存储模式
公开(公告)号：WO2012052800A8
公开(公告)日：2013-06-20
申请号：PCT/IB2010003263
申请日：2010-10-21
申请人： ORACLE INT CORP , BOURBONNAIS ROCH , SANOUILLET BLAISE
发明人： BOURBONNAIS ROCH , SANOUILLET BLAISE
IPC分类号： G06F11/10
CPC分类号： G06F3/0689 , G06F11/1076 , G06F2211/109
摘要： A method for writing a logical data block to storage. The method includes receiving a request to write a logical data block to a storage pool, allocating a number of physical log blocks in a RAID log and a parity block for the logical data block, and writing the logical data block and the parity block to the physical log blocks. The number of the physical log blocks are less than a number of disks storing the RAID log. The method further includes allocating space in a physical slab block in a RAID slab for the logical data block, copying data including the logical data block to the space in the physical slab block, and updating, in the RAID slab, a checksum corresponding to the physical slab block and a parity block that includes the data stripe having the physical slab block based on the data copied.
摘要翻译：一种将逻辑数据块写入存储的方法。该方法包括接收向存储池写入逻辑数据块的请求，在RAID日志中分配多个物理日志块和用于逻辑数据块的奇偶校验块，以及将逻辑数据块和奇偶校验块写入到物理日志块。物理日志块的数量少于存储RAID日志的磁盘数。该方法还包括在逻辑数据块的RAID板中分配物理板块中的空间，将包括逻辑数据块的数据复制到物理板块中的空间，以及在RAID板中更新与物理板块和奇偶校验块，其包括基于所复制的数据的具有物理板块的数据条带。

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