RE: system tablespace at 50 pct_increase in 9i?

[Mladen Gogala]

Title: Message

Same here. I've actually had 14400 modem on my desk. Before that, I was using 9600 modems and kermit or "SET HOST/X25"  (once upon a time on a VAX far, far away....)     -- Mladen Gogala Oracle DBA -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Arup Nanda Sent: Monday, August 18, 2003 11:14 AM To: Multiple recipients of list ORACLE-L Subject: Re: system tablespace at 50 pct_increase in 9i? Tim, WebIV? I must have skipped a generation; I used the OraSupport forum on CompuServe before the MetaLink. You had to subscribe to CompuServe; and it was accessible only through dial-up; so we had dial-up lines at our desk, had to buy external modems, and all that. And I thought WebIV was and still is only for Oracle Consulting and Support Staff.   Arup ----- Original Message ----- From: Tim Gorman To: Multiple recipients of list ORACLE-L Sent: Monday, August 18, 2003 9:44 AM Subject: Re: system tablespace at 50 pct_increase in 9i? Good point!  Another war story... Some 6 years ago, during v7.3.3 timeframe, a DBA decided to modify INITIAL, NEXT, and PCTINCREASE of everything, including stuff in SYSTEM.  Unfortunately, he chose first to do this in pre-PROD (to become PROD following week).  Turns out he ran into a little-known bug (aren’t they all, at first?) whereby any ALTER TABLE to the table named SYS.BOOTSTRAP$ causes a single bit to be set in the segment header block.  This single bit being set causes ORA-00600 on instance startup. You guessed it:  the night before go live, they had a junior DBA stop and restart the instance at 12:30am.  Poor guy stayed up all night, I got there around 6:00am, we found the cause and convinced Oracle Support to dial in and BBED the problem into submission by 1:00pm.  MetaLink didn’t exist in those days — we had access to MetaLink’s predecessor, called “WebIV”... Don’t change the stuff in the SYSTEM tablespace, which includes the tablespace itself.  Keep “foreign stuff” (i.e. not belonging to SYS, SYSTEM, MDSYS, ORDSYS, OUTLN, etc) out of it and just leave it alone. on 8/18/03 4:59 AM, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote: i thought you should leave the system table space to the defaults? Ive never touched System. you really should change system to locally managed tablespaces? > > From: Tim Gorman <[EMAIL PROTECTED]> > Date: 2003/08/17 Sun PM 11:19:23 EDT > To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> > Subject: Re: system tablespace at 50 pct_increase in 9i? > > Better yet, use locally-managed SYSTEM tablespace and dispense with the > issue altogether? > > > on 8/17/03 5:39 PM, Ryan at [EMAIL PROTECTED] wrote: > > > any idea why oracle has the system tablespace using 50 pct_increase in 9i? I k > > now it did that in the past, but why not set it to zero? > >   > > Ryan > > > > > > Better yet, use locally-managed SYSTEM tablespace and dispense with the issue altogether? on 8/17/03 5:39 PM, Ryan at [EMAIL PROTECTED] wrote: any idea why oracle has the system tablespace using 50 pct_increase in 9i? I k now it did that in the past, but why not set it to zero? Ryan   Note: This message is for the named person's use only.  It may contain confidential, proprietary or legally privileged information.  No confidentiality or privilege is waived or lost by any mistransmission.  If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender.  You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. Wang Trading LLC and any of its subsidiaries each reserve the right to monitor all e-mail communications through its networks.  Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity.