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RMAN Backup Fails with RMAN-03009, ORA-19502, ORA-27063 and "Svr4 Error: 5: I/O Error" (Doc ID 1212114.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


When attempting to do RMAN(Recovery Manager) database backup,
the following error occurs.


RMAN-03009: failure of backup command on ORA_DISK_3 channel at 09/09/2010 01:48:20
ORA-19502: write error on file "/u01/app/oracle/backups/orcl/orcl_2708406440_20100909_milne37m_1_1", blockno 229377 (blocksize=512)
ORA-27063: number of bytes read/written is incorrect
SVR4 Error: 5: I/O error
Additional information: -1
Additional information: 1048576
channel ORA_DISK_3 disabled, job failed on it will be run on another channel

The issue can be reproduced at will with the following steps:
Run RMAN script:

backup database tag='Full online backup' plus archivelog delete input;
backup current controlfile tag='Full online controlfile backup';



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