Takes a long time to open the database

  • From: New DBA <new_dba_on_the_block@xxxxxxxxx>
  • To: ORACLE-L@xxxxxxxxxxxxx
  • Date: Sat, 2 Oct 2004 06:53:03 -0700 (PDT)

Hi All,

When I start the instance, ALTER DATABASE OPEN command
takes a very long time to complete. It takes
approximately 20-25 mins. to complete.

Is this normal? If not, how to investigate this? Is it
because I have a large no. of datafiles (close to
500)?

I'm aware that opening takes a long time after
SHUTDOWN ABORT, but this happens even after the
database is shutdown normally with SHUTDOWN IMMEDIATE.

Alert log gives no clue whatsoever.

Please let me know what might be wrong and how to
debug this problem. 

Regards
New DBA


        
                
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