After reviewing this error in the alert log, I found that this was pertaining to one particular datafile. What I did to resolve this issue was the following: 1. Go to the primary database and backup the datafile in question. In this case, it was datafile #56. Recovery Manager: Release 11.2.0.1.0 - Production on Tue Dec 20 21:52:01 2011 Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved. connected to target database: POC2 (DBID=1234567890) RMAN> backup as compressed backupset datafile 56; Starting backup at 20-DEC-11 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=1492 instance=poc22 device type=DISK channel ORA_DISK_1: starting compressed full datafile backup set channel ORA_DISK_1: specifying datafile(s) in backup set input datafile file number=00056 name=+DATA/poc2/datafile/tg_ods.256.767919427 channel ORA_DISK_1: starting piece 1 at 20-DEC-11 channel ORA_D...
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