EHP6 upgrade on HP-UX/Oracle - on our production system.
I'm to the preprocessing step in the phase MAIN_INIT/REPACHK_CLONE where it needs to lock the system. It states that no changes to development objects are possible until the end of the procedure. I'm wanting to complete the preprocessing step and be ready for the "Execution" (downtime) step when the go-live weekend rolls around which is a few weeks from now.
Here is my conundrum; The preprocessing step usually takes 3-5 days (on previous systems) if there are no problems. I don't want to wait until I'm 5 days out and start this step in case there is a problem and it takes me a couple of days to fix. This would cause me to have to wait another whole month due to the very narrow window I have for downtime. So I want to get it ready well ahead of time. If I continue now and lock the system, (unless I'm mistaken) I will not be able to make any emergency repairs or transports to this system (PRD)for the next few weeks until the entire upgrade is complete. Is this correct or is there a way to make emergency changes/transports while the system is "locked"? I realize that they would likely be overwritten after the upgrade and have to be redone after the upgrade.
I'm looking for suggestions on how to proceed.
Thanks,
Kyle