"ORA-15025:" and "ORA-27041: unable to open file" error in the Database alert log during RMAN backup
(Doc ID 2617603.1)
Last updated on FEBRUARY 04, 2020
Applies to:Oracle Database - Standard Edition - Version 184.108.40.206 and later
Information in this document applies to any platform.
During the RMAN backup,alert has below errors.
Additional information: 3
WARNING: Read Failed. group:2 disk:0 AU:23 offset:16384 size:16384
incarnation:0x0 synchronous result:'I/O error'
subsys:Unknown library krq:0x7fbbfd2bf428 bufp:0x7fbbf723b000 osderr1:0x434c5344 osderr2:0x0
IO elapsed time: 0 usec Time waited on I/O: 0 usec
WARNING: failed to read mirror side 1 of virtual extent 0 logical extent 0 of file 256 in group [2.2682069373] from disk FRA_0000 allocation unit 23 reason error; if possible, will try another mirror side
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_ora_9638.trc:
ORA-00202: control file: '+FRA/ORCL/CONTROLFILE/current.256.992614997'
ORA-15081: failed to submit an I/O operation to a disk
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