首页>
外国专利>
Correcting multiple block data loss in a storage array using a combination of a single diagonal parity group and multiple row parity groups
Correcting multiple block data loss in a storage array using a combination of a single diagonal parity group and multiple row parity groups
展开▼
机译:使用单个对角奇偶校验组和多个行奇偶校验组的组合来纠正存储阵列中的多个块数据丢失
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for correcting double failures in a storage array has the following steps. A storage array is organized as a plurality of concatenated sub-arrays, each sub-array including a set of data storage devices and a row parity storage device. Row parity is computed for each row of each sub-array. The row parity of a particular sub-array is stored on a row parity storage device of the particular sub-array. A diagonal parity is computed across the concatenated sub-arrays. A double storage device failure is corrected using both the sub-array row parity and the diagonal parity.
展开▼