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    • 10. 发明授权
    • Metadata for a grid based data storage system
    • 基于网格的数据存储系统的元数据
    • US07594075B2
    • 2009-09-22
    • US10969580
    • 2004-10-20
    • Randy L. RobersonClark Edward Lubbers
    • Randy L. RobersonClark Edward Lubbers
    • G06F12/16
    • H04L67/1097G06F11/1076G06F2211/1028
    • Metadata architecture and associated methodology for a data storage system employing a grid-based storage capacity wherein each grid defines a storage unit in terms of a plurality of storage domains along one axis against one or more rows of a plurality of storage stripes along another axis, and wherein a grid grouping of two or more grids defines a sheet of data storage capacity. The metadata comprises identification information stored in a memory space characterizing an allocation status of the sheets in the storage capacity. A method is provided for allocating memory for the grid-based storage capacity comprising determining whether the allocation is associated with an existing logical device. If the determining step is associated with an existing logical device, then a logical device allocation map and a sheet allocation table are accessed to allocate a selected storage unit. Otherwise, a sheet allocation descriptor and a sheet allocation map are accessed to allocate a selected storage unit. A method is provided for transferring data for the grid-based storage capacity comprising accessing a logical device allocation map and a drive organization table to transfer data to or from a selected storage unit.
    • 用于采用基于网格的存储容量的数据存储系统的元数据结构和相关联的方法,其中每个网格沿着沿着另一轴线的沿着一个轴线的多个存储域中的多个存储条带的一行或多行定义存储单元, 并且其中两个或更多个网格的网格分组定义了一张数据存储容量。 元数据包括存储在表征存储容量中的纸张的分配状态的存储空间中的识别信息。 提供了一种用于分配用于基于网格的存储容量的存储器的方法,包括确定分配是否与现有逻辑设备相关联。 如果确定步骤与现有的逻辑设备相关联,则访问逻辑设备分配映射表和工作表分配表以分配所选择的存储单元。 否则,访问纸张分配描述符和纸张分配图以分配所选择的存储单元。 提供了一种用于传送用于基于网格的存储容量的数据的方法,包括访问逻辑设备分配映射和驱动组织表以将数据传送到所选存储单元或从所选择的存储单元传送数据。