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help!! database keeps crashing

602636Jan 16 2008 — edited Jan 14 2009

I've been working on this problem for 4 months. The database keeps crashing randomly. Sometimes it would not produce any error in the alert log and sometimes it would give me multiple ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [unable_to_trans_pc] [PC:0x77FCB491] [ADDR:0x38] [UNABLE_TO_WRITE] [].

I'm starting to think it is backup exec 11d using rman that is causing the problem. I also heard that running rman with backup exec can strain the database.

What else can I look at?

Is ADDM a good method to use to diagnostic this problem and how do i access it?

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Locked on Feb 11 2009

Added on Jan 16 2008

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