>> That means you have both running, pre-12c and 12c, each with its own agents. As you move the pre-12c agents, you can sync the history as part of the move to the 12c repository. Sync'ing the history - is that a 12c feature or is that available in 11g as well? I am in the process of upgrading a Production Grid environment from 10.2 to 11.2. Preserving the history would be great. -Upendra CC: development@xxxxxxxxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx From: pete.sharman@xxxxxxxxxx Subject: Re: Oracle Grid... ahem Cloud Control 12c Date: Wed, 19 Oct 2011 10:39:52 +1100 To: nupendra@xxxxxxxxxxx Sorry, at the Australian 12c launch, so I just saw this. If you were doing a one system upgrade, you will be upgrading your existing repository, so that keeps everything you had. If you are doing a two system upgrade, you clone the existing repository, leaving the old version with pre-12c agents pointing to it. You can then gradually install 12c agents pointing to the new repository. That means you have both running, pre-12c and 12c, each with its own agents. As you move the pre-12c agents, you can sync the history as part of the move to the 12c repository. Pete On 18/10/2011, at 10:34 PM, Upendra N <nupendra@xxxxxxxxxxx> wrote: With the EM upgrade, when we re-register the targets do we loose the history of the metrics gathered? Is there a way to preserve the performance metrics history? -Upendra > Date: Tue, 18 Oct 2011 03:56:11 -0700 > From: pete.sharman@xxxxxxxxxx > To: development@xxxxxxxxxxxxxxxxx; oracle-l@xxxxxxxxxxxxx > CC: pete.sharman@xxxxxxxxxx > Subject: RE: Oracle Grid... ahem Cloud Control 12c > > Glad you re-sent that email, since I don't speak fluent gobbledygook. :) > > From customers I've spoken to, the main reason people are looking at upgrade > rather than a clean installation is purely and simply because they want to > keep the history that is currently contained in their repository. Of course, > a clean installation does give you the chance to get rid of a lot of old > baggage that you may no longer need, but in general this is more of a > business decision than a technical one really. > > Pete > > Pete Sharman > Principal Product Manager > Enterprise Manager Product Suite > 33 Benson Crescent CALWELL ACT 2905 AUSTRALIA > Phone: +61262924095 | | Fax: +61262925183 | | Mobile: +61404005744 > > "Controlling developers is like herding cats." > Kevin Loney, Oracle DBA Handbook > > "Oh no, it's not, it's much harder than that!" > Bruce Pihlamae, long term Oracle DBA > > > > -----Original Message----- > From: Martin Bach [mailto:development@xxxxxxxxxxxxxxxxx] > Sent: Tuesday, 18 October 2011 9:42 PM > To: oracle-l@xxxxxxxxxxxxx > Subject: Re: Oracle Grid... ahem Cloud Control 12c > > Very odd characters in my list post-not sure where they come from. > Sending again with a different email client: > > I'm finding it very interesting that so many of you on this list opt to > upgrade their management servers. At my current site we are evaluating > if we shouldn't forget about the current deployment and use the 12c > upgrade to get do a tech refresh. New OMS, new load balancers, new > database (everything). The risk of doing so is considered less than with > an upgrade. > > For those going for the migration from 11.1 or even 10.2, would you > mind sharing your reasons for the upgrade? How many targets do people > monitor? > > Best regards, > Martin Bach > > -- > Martin Bach Consulting > http://martincarstenbach.wordpress.com > http://www.linkedin.com/in/martincarstenbach > -- > //www.freelists.org/webpage/oracle-l > > > -- > //www.freelists.org/webpage/oracle-l > > -- //www.freelists.org/webpage/oracle-l