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Recovering from abnormal interruption of a parity update operation in a disk array system
Recovering from abnormal interruption of a parity update operation in a disk array system
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机译:从磁盘阵列系统中奇偶校验更新操作的异常中断中恢复
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摘要
Data associated with the state of a parity update operation in a disk array system such as a RAID-6 system is stored during performance of the operation so that, in the event the operation is interrupted, recovery may be initiated using the stored data. The stored data may include a state indicator that is indicative of the status of the parity update operation, and snapshot data (e.g., a delta value indicative of a difference between new and old data) captured during the parity update operation.
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