Database Administration (MOSC)

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Data Block Corruption Issue

edited May 31, 2010 1:44AM in Database Administration (MOSC) 12 commentsAnswered
Hi,

One of our customers having Oracle 10g R2 Database (Single Instance) running on HP-UX having a corrupted datafile. We are not able to copy the datafile during cold backup due to some hardware issue. During Full database export, it shows some block corruption:

EXP-00056: ORACLE error 1115 encountered
ORA-01115: IO error reading block from file 18 (block # 15861)
ORA-01110: data file 18: '/u02/oradata/PROD/data04.dbf'
ORA-27091: unable to queue I/O
ORA-27072: File I/O error
HPUX-ia64 Error: 5: I/O error
Additional information: 4
Additional information: 15797
Additional information: -1

I want to know how to set some event parameter in the init.ora to perform the export which skips the corrupt blocks so that we can alteast export the affected table with some data loss.

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