DB Control/OEM 11g and a side note on the Oracle inventory

I was experiencing a problem with the Performance page on 11g OEM, where the date chooser would only show "January 0" when I switched to "Historical".  This is obviously sub-optimal!

Turns out, after much hunting, there is a known bug and a patch for this issue!  Hurrah!  It doesn't seem to be widely noted (only 25 downloads!) so this is for my reference as much as anyone else's.

The bug is 8521404, and the corresponding patch is here.  Simple to apply - take down dbconsole with emctl, opatch apply, start dbconsole.

At least it is... if your inventory is there.

Turns out, that whoever created our data guard standby didn't bother to create:

  • /etc/oratab
  • A central inventory
It was simple enough to resolve using OUI:
./oui/bin/runInstaller.sh -silent -attachHome -invPtrLoc "/etc/oraInst.loc" oracle_home="$ORACLE_HOME" oracle_home_name="Ora11g_Home"
Still annoying.  I hate to think what would have happened were there a requirement to patch something more important and someone with less experience was required to do it...

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