I just noticed that using ALTER SYSTEM SWITCH LOGFILE is not causing a
checkpoint.  Which cause the last redo group to remain archived but active.
I had to force a checkpoint to get it to inactive state.  The docs state:

The SWITCH LOGFILE clause lets you explicitly force Oracle to begin writing
to a new redo log file group, regardless of whether the files in the current
redo log file group are full. When you force a log switch, Oracle begins to
perform a checkpoint. Oracle returns control to you immediately rather than
when the checkpoint is complete. To use this clause, your instance must have
the database open. 

But I am sitting here looking tailing my alert log and no checkpoint occurs
till I force it.  Is this a bug? 8.1.6.0 AIX (I know I am patching soon!)

- Ethan
- http://www.geocities.com/epost1

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