Oracle-L: RE: Seeking opinions

From: Ji, Richard <Richard.Ji_at_MobileSpring.com>
Date: Tue, 02 Apr 2002 07:03:24 -0800
Message-ID: <F001.00438C0C.20020402070324@fatcity.com>

Hi Paul,

How's going?

What if someone on the dba group make a mistake (typo or whatever) and put the data file in the wrong place? And other DBAs didn't notice it and work on something. I don't like the idea people assume things will be in the right place because the rule says so. I'd rather trust data dictionary than somethng that has 16 DBA's hands on it.

Do they also write they scripts assuming everything is where it should be?

Richard Ji

-----Original Message-----
Sent: Monday, April 01, 2002 5:48 PM
To: Multiple recipients of list ORACLE-L

Hi everyone.

I'm currently working at a client where the OFA standard has been (as they put it) "taken to the next level". I disagree with their approach, and I'd be interested to see what list members think.

The client believes that any DBA (there are about 16 on staff) should be able to locate data files in any database without querying the data. To this end, mount points are named both /unnn (e.g., /u001) and /annn (e.g., /a001). "System" datafiles (system, temp, rollback tablespaces) go only on the /unnn mount points, and in particular, datafiles for certain tablespaces must go on certain mount points--for instance rollback tablespace files always go on /u004.

"User" datafiles are allowed on /a001 and /a002, tables and indexes, respectively.

To my mind, this standard changes the Optimal Flexible Architecture to the Sub-optimal Inflexible Architecture, and all just to avoid a data dictionary query. What do you think?

Thanks,

Paul Baumgartel, Adept Computer Associates, Inc. paul.baumgartel_at_aya.yale.edu

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Author: Paul Baumgartel
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Author: Ji, Richard
INET: Richard.Ji_at_MobileSpring.com

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