Creating a reporting DB

From: <dgoulet_at_vicr.com>
Date: Fri, 07 Dec 2001 12:36:17 -0800
Message-ID: <F001.003D7D5F.20011207121521@fatcity.com>

Folks,

I'm sure that someone on the list has done this in the past or at least can "see the forest through the trees". I've been a little too close to this and lost the perspective.

Anyhow, what we're trying to do is create two replica's of our production PeopleSoft database on a separate machine using the hot backup method (otherwise known as EMC TimeFinder). Now that's two HP 9000 and three instances of Oracle. It does not take a wizard to understand that there is going to be a SID conflict somewhere. SIDs around here are two characters in place and range from '02' to '09' (Please don't ask why, it's a VERY long story).

We start out with Dudley:02 and want to end up copying that to Schroeder:06 and Schroeder:05. BTW, the mount points are not the same so we have to not only change the database name, but the file paths too. We've figured out the file renaming part just fine & getting the SID changed. The problem comes with recreating the control file. Oracle recommends using the 'create controlfile set database 06 resetlogs' which sets the sequence in V$log to 0, but leaves us with a database that is looking for an archive log that does not exist.

The sequence of events we're using is:

Place production DB into hotbackup mode.
Break the mirror.
End backup on production.
Mount the mirror on the second machine.
Startup nomount the new instance, but under a different SID.
Rebuild the control file with a new name while renaming datafiles, including the online redo.
Recover the database. This is where the trouble commences.

Anybody have an idea??? BTW: We're trying to do this as a complete scripted operation that the SA can just run.

Dick Goulet

OH, Also please include my companion in crime (listed in the address area) as I'm off next week.
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