Hi Steve
I have actually done exactly what you are thinking of trying several times
over i.e. renamed the
sgadefSID.dbf file when trying to clone a database. Once the clone was
created I just renamed it to its
original name with no problems.
Regards
Natasha
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]>
Sent: Tuesday, April 10, 2001 4:35 PM
Hi All,
Trying to clone our PROD to a test database on the same machine for testing
our 734-->8i upgrade, and of course we're encountering the
"can't-start-the-new-without-shutting-down-the-old" database problem (ie,
ORA-9782 on the CREATE CONTROLFILE command). We've worked around this in
the past by scheduling a time to bring down PROD.
I know that this is the safest, most reliable way (besides NOT doing this on
a production box...but I have no choice), but believe it or not, I actually
saw a reference on a Metalink forum to rename the sgadefSID.dbf file, start
up the new database, then rename the file to its original name. Obviously
sgadef gets created at instance startup as a memory map, but it doesn't look
like it's used for anything after that (it's certainly doesn't seem to be
written to). I do know that you can get an octal dump of the file to
determine the shared memory ID for whatever reason.
Everything else I've heard/seen about this file has pretty much said DON'T
TOUCH IT!!! But if the instance only uses it at instance startup, is there
any harm in renaming it temporarily to get the other database up? If
so...why?
And have any of you tried renaming or deleting the file in your cloning (or
other) efforts? Did it blow up, or work?
TIA,
Steve
_____________________________
Steve Morrow
IT/Tech Support
University of South Florida
phone: 813-974-5519
[EMAIL PROTECTED]
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Author: Natasha Batson
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