Re: Apps 11.5.9 Disater Recovery Site

One issue popped into my mind with patching & disaster recovery:

When you're patching your primary system, have applied all c & g and d drivers (or an u driver) and a disaster occurs, then your secondary site might remain in inconsistent state e.g. database objects have the new version, but corresponding $APPL_TOP ones are old, because they're not rsynced yet.

Or the opposite - when rsync has been done, but you have to do a point in time recovery to the point before d-patch application in secondary site.

And of course, don't forget to simulate and test the disaster, several times, if possible. Without warning, if possible ;)

Tanel.

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, December 31, 2003 1:34 AM

> I've been charged with bringing up a disaster recovery site, so time to
hit the books again as a lot
> has changed since the last time I did this. Looking for resource
recommendations (FM to read, white
> papers, etc).
>
> Sticky part of this is it is an Applications 11.5.9 installation. The
database end of it should not
> be too difficult (8.1.7.4, soon to be 9.2.0.4), but the applications file
system is modified by the
> adpatch utility which adpatch requires a database connection to function.
I can think of 2 ways to
> get around this requirement.
> 1. set the two_task to point to a live test system, and run adpatch force
using the c and g drivers.
> The d driver would not need to be run since the changes will come over via
the archive logs.
> 2. ignore adpatch utility completely and use rsync.
>
> Suggestion, comments?
>
> Thanks,.
> Ron Thomas
> Hypercom, Inc
> rthomas_at_hypercom.com
> Each new user of a new system uncovers a new class of bugs. -- Kernighan
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Ron Thomas
> INET: rthomas_at_hypercom.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Tanel Poder
  INET: tanel.poder.003_at_mail.ee

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