修复单个 block 坏块 ...............................................................................................................1
标记单个 block 为坏块 ............................................................................................................2
查看数据块内容.......................................................................................................................2
修改数据块中数据...................................................................................................................2
修复数据文件头 SCN 信息 ......................................................................................................3
修复数据文件头 resetlogs 信息 .............................................................................................4
修复数据文件头 fuzzy 信息 ....................................................................................................4
数据块拷贝...............................................................................................................................5
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