Sunday, March 27, 2011

RMAN block change tracking

Bug 4200702 - BLOCK CHANGE TRACKING WHEN USING DIRECT LOAD

According to Metalink Note : 300989.1, when block change tracking enabled and using direct load operations, it is like to get an ORA-19694 on Oracle 10.0.1.x version specific to all the platforms due to a bug 4200702.


Possible Symptoms

~~~~~~~~~~~~~~~~~
RMAN-571: ==========================================================
RMAN-569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-571: ========================================================== RMAN-3009: failure of backup command on ORA_DISK_1 channel at 02/14/2005 ORA-19694: some changed blocks were not found in the change tracking file

Workaround would be disabling change tracking feature.


According to the note, this is fixed in a patchset 10.1.0.5 and one-off patches are available for 10.1.0.4 and 10.1.0.3.


I guess, who are on 10gR2 and enabled the BCT feature doesn’t have this bug.

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