My first day at this task was spent downloading the media packs (I also read through the upgrade documentation and surfed some interesting news sites, had lunch, surfed 9gag for a little while and finally decided to leave the second media pack downloading overnight as it's almost time to go home and it's still at about 60%) due to my limited internet connection (over a vpn link to HQ).
This is my first OEM GC upgrade so I'm not sure what to expect and certainly can't compare it to previous upgrades (i.e. 10g to 11g). I can, however, compare this upgrade to a database upgrade and perhaps to a EBS upgrade.
At first glance I really liked the two-system approach, it makes the upgrade look easy. However I'm not sure I have two systems to do this upgrade, so I might take the one system approach. On the other hand, the system I'm upgrading is clustered, so in theory I could break the cluster, leave only one OMS up and use the second node as the "second system". I think I need to re-read the two-system approach as I mostly focused on 1-system.
The current set up:
I have two nodes with Linux Red Hat Enterprise Linux Server release 5.6 (Tikanga)
The kernel I'm using is:
[oracle@oem1 ~]$ uname -a
Linux oem1 2.6.18-238.5.1.el5 #1 SMP Mon Feb 21 05:52:39 EST 2011 x86_64 x86_64 x86_64 GNU/Linux
Linux oem1 2.6.18-238.5.1.el5 #1 SMP Mon Feb 21 05:52:39 EST 2011 x86_64 x86_64 x86_64 GNU/Linux
I have a 11.2.0.2.0 RAC running with about 7 cluster databases (one of which acts as EM Repository). I also have the entire grid control installed on this cluster. Oracle Enterprise Manager 11g Release 1 Grid Control 11.1.0.1.0 with PSU4 applied
The target is to have the OMS upgraded to 12c Release 1 as the database version requirement is already me. This is a clustered OMS so I will need to upgrade all the OMS according to the documentation. This looks fairly simple. I will try to keep the most accurate record of my upgrade I can.
