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ora-19612 datafile xx not restored due to missing or corrupt data

in Database Backup and Recovery (MOSC) 7 comments

Version: Enterprise Edition Release 12.2.0.2.0

data size:47T

when I restored with rman use full backup, I got ora-19612 error, and in the alert had informations like this:

corrupt block 3202048 found during reading backup piece,file=ORDB_TEST40_35_23_1087723469, corr_type=-2

continuing reading piece ORDB_TEST40_35_23_1087723469, no other copies available

......

......

corrupt block 3202048 found during reading backup piece,file=ORDB_TEST40_35_23_1087723469, corr_type=-2

continuing reading piece ORDB_TEST40_35_23_1087723469, no other copies available


There were 512 blocks found total.


How can I to find the problem cause？


Thanks.

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