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Home -> Community -> Mailing Lists -> Oracle-L -> RE: convert RBS tablespace from DMT to LMT (Oracle 8173) steps?
Guang
Yes, I noticed that after I posted my reply. Typically if this was a production system I would tend to create new rollback segments, online the new segments, offline the old segments, then change the init.ora. Sometime later I would drop the old segments and tablespace, maybe after a backup cycle has occurred. Now, you will say that is unnecessary, and technically you would be right. But one of the rules you learn by being a DBA for a long time is to never delete anything until you are absolutely certain you won't need it. Always have a rollback plan (no pun intended). It is also a good idea to back up the control file to trace anytime you make changes in database structure. With my method, if you have one of those "oh crap" moments, you can quickly recover. This may be overkill in this specific instance, but there are many other circumstances where you may end up being awfully glad you were a little cautious.
Dennis Williams
DBA, 80%OCP, 100% DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com
-----Original Message-----
From: Guang Mei [mailto:gmei_at_incyte.com]
Sent: Wednesday, July 23, 2003 1:14 PM
To: Multiple recipients of list ORACLE-L
Subject: RE: convert RBS tablespace from DMT to LMT (Oracle 8173) steps?
Do I need to? I thought after all the steps I still have the same rollback segment names (RBS01-06). The only difference is they will be in LMT now.
Guang
-----Original Message-----
DENNIS WILLIAMS
Sent: Wednesday, July 23, 2003 1:35 PM
To: Multiple recipients of list ORACLE-L
Guang - Don't forget to update your init.ora!
Dennis Williams
DBA, 80%OCP, 100% DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com
-----Original Message-----
Sent: Wednesday, July 23, 2003 12:24 PM
To: Multiple recipients of list ORACLE-L
Hi:
I need to convert RBS tablespace (used for rollback segments) from DMT to LMT on a 24x7 production machine (Solaris 2.8, Oracle 8173). Here are the steps I am thinking of taking:
Anything I am missing?
TIA. Guang
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Author: Guang Mei
INET: gmei_at_incyte.com
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Author: Guang Mei
INET: gmei_at_incyte.com
Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting servicesto: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may Received on Wed Jul 23 2003 - 12:25:37 CDT
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