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rman恢复时提示坏块，corr_type=4

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发表于 2012-12-7 16:14:39 | 查看: 3372| 回复: 1

请教刘大， rman恢复时alert日志报：
Datafile piece hard block mismatch, expected 74, got 114 (999626) for file 89
Corrupt block 999626 found during reading backup piece, file=bk_16772_1_798958888, corr_type=4
No other copies of piece bk_16772_1_798958888 to read, reading current piece until end.
这里的corr_type=4是什么意思？

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