Reducing rollback segment tablespace sizes

2003-11-17 Thread Michael Milligan
I have a client where rollback segments were set up RBS01-RBS05, all in a tablespace called RBS. The person who set it up set %INCREASE at 50%. Well, I shrank the segments to themselves down to less than 500MB total from 4.6GB! But in using ALTER DATABASE DATAFILE . . . RESIZE . . . it won't let

Re: Reducing rollback segment tablespace sizes

2003-11-17 Thread Stephane Faroult
Michael Milligan wrote: I have a client where rollback segments were set up RBS01-RBS05, all in a tablespace called RBS. The person who set it up set %INCREASE at 50%. Well, I shrank the segments to themselves down to less than 500MB total from 4.6GB! But in using ALTER DATABASE DATAFILE . .

Re: Reducing rollback segment tablespace sizes

2003-11-17 Thread Daniel Fink
Micheal, Could you shrink the rbs even smaller? This should work if the first two extents of each rbs are in the 'first' blocks of the datafile. If not, the best solution is to create new smaller ones as you drop the others and then resize. Regardless of the solution, do this during a slow time

Re: Reducing rollback segment tablespace sizes

2003-11-17 Thread Jared . Still
. HTH Jared Michael Milligan [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 11/17/2003 01:29 PM Please respond to ORACLE-L To:Multiple recipients of list ORACLE-L [EMAIL PROTECTED] cc: Subject:Reducing rollback segment tablespace sizes I have a client where

RE: Reducing rollback segment tablespace sizes

2003-11-17 Thread Michael Milligan
Thanks for the info. It's 8.1.7.4, and it's not hard-coded. I changed it from 50% to 0%, but the damage had been done. Maybe you're just nostalgiac for the good old days of v6! I did set an optimal, and used shrink. That worked fine to shrink the segments, but they are still scattered

RE: Reducing rollback segment tablespace sizes

2003-11-17 Thread Michael Milligan
Daniel, Thank you very much. I'll do what you suggested, on both counts. I'll try shrinking them more first, then create new ones if needed. Thanks again, Mike -Original Message- Sent: Monday, November 17, 2003 2:49 PM To: Multiple recipients of list ORACLE-L Micheal, Could you