Re: Cloning Question

I thought there was a rollback segment in system that would be there. It should be enough to get things started. After all, there isn't a separate one when you create a database, until you create it.

DENNIS WILLIAMS wrote:

> Scott - I think that Rachel offered better advice, and I'm sure you've read
> her note by now. I have some experience with missing files when cloning a
> database :-), but I haven't had the rollback tablespace missing, and that
> would be different. One thought would be to create an extra rollback
> tablespace on production, so that when you perform the clone operation,
> Oracle still has some rollback segments available.
> Dennis Williams
> DBA
> Lifetouch, Inc.
> dwilliams_at_lifetouch.com
>
> -----Original Message-----
> Sent: Thursday, May 09, 2002 12:03 PM
> To: Multiple recipients of list ORACLE-L
>
> Dennis,
> No. I did a create controlfile set database... I commented out the
> rollback_segments line in the init.ora and removed the reference to the file
> in
> the create controlfile statement. With no reference (that I know of) to the
> rollback segments or tablespace, I thought that the database should have
> come
> up, then I could create a new one. I must have missed something, but I
> don't
> know what that was.
>
> DENNIS WILLIAMS wrote:
>
> > Scott - Let's see if I understand specifically what you did. You ran the
> > CREATE DATABASE script that was generated from your production system.
> Now,
> > since the datafile for rollback tablespace isn't there, Oracle will come
> up
> > without it. Once your new instance was up, then you did a DROP TABLESPACE
> on
> > the rollback tablespace, followed by a CREATE TABLESPACE. I've done that
> > scenario quite a few times on Oracle 8.1.6, just yesterday, as a matter of
> > fact (that was a temp tablespace). If those weren't your steps, then
> provide
> > more details.
> > Dennis Williams
> > DBA
> > Lifetouch, Inc.
> > dwilliams_at_lifetouch.com
> >
> > -----Original Message-----
> > Sent: Thursday, May 09, 2002 8:48 AM
> > To: Multiple recipients of list ORACLE-L
> >
> > I spent a long time trying to clone our production data warehouse
> > into test, to refresh it. I do this frequently, as both a way to
> > refresh test instances and to test the backups. After fighting through
> > 2 bad backups, I finally got a good one. However, the problem I had was
> > that the production rollback tablespace is larger than the disk on test.
> >
> > My thought was that I could restore everything except the rollback
> > tablespace, which is not the way I usually do it. I commented out the
> > rollback_segments line in the init.ora and created a script that would
> > create a new rollback tablespace and rollback segments, smaller than
> > those in production. This didn't work, even though Oracle support said
> > it should have. When I did the clone, the database would not open. I
> > kept getting the following error:
> >
> > ORA-00600: internal error code, arguments: [25012], [1], [2], [], [],
> > [], [], []
> >
> > Does anyone know what I was doing wrong? I can't figure it out, and
> > Oracle support couldn't figure it out, either. I was able to get the
> > database up by getting more disk added, so that there was enough space
> > to restore the rollback tablespace file.
> >
> > Thank you.
> >
> > --
> > Scott Canaan (srcdco_at_rit.edu)
> > (585) 475-7886
> > "Life is like a sewer, what you get out of it depends on what you put
> > into it" - Tom Lehrer
> >
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > --
> > Author: Scott Canaan
> > INET: srcdco_at_ritvax.rit.edu
> >
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> > Author: DENNIS WILLIAMS
> > INET: DWILLIAMS_at_LIFETOUCH.COM
> >
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> --
> Scott Canaan (srcdco_at_rit.edu)
> (585) 475-7886
> "Life is like a sewer, what you get out of it depends on what you put into
> it" -
> Tom Lehrer
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Scott Canaan
> INET: srcdco_at_ritvax.rit.edu
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: DENNIS WILLIAMS
> INET: DWILLIAMS_at_LIFETOUCH.COM
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
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--
Scott Canaan (srcdco_at_rit.edu)
(585) 475-7886
"Life is like a sewer, what you get out of it depends on what you put into it" -
Tom Lehrer


-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Scott Canaan
  INET: srcdco_at_ritvax.rit.edu

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