Tag Archives: OEM

Oracle Database Appliance – Safely usable ASM diskgroup size

Posted on April 16, 2012 by marcel

Not long ago I got a warning from Oracle Enterprise Manager that the REDO diskgroup on one of our ODA’s exceeded the warning threshold of 75%. Looking at the number of database instances and configured online redo log sizes I … Continue reading →

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Oracle Database Appliance – Installing Patch Bundle 2.1.0.3.0

Posted on March 22, 2012 by marcel

We just finished installing ODA Patch Bundle 2.1.0.3.0 on one of our ODA’s….. There goes one of the key features for the ODA – Simple one-button patch installation. As a DBA (and I think all administrators) are very reserved when … Continue reading →

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Solaris SMF Oracle Grid agent service killing Oracle instance

Posted on August 22, 2011 by marcel

In the last couple of months we had some strange problems with all processes of Oracle database and ASM instances just disappearing. The shared memory segment was still there and you could connect internally to the instance, even execute some … Continue reading →

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Unregistering (removing) agent from OEM Grid Control

Posted on May 15, 2011 by marcel

When you want to permanently remove an agent from you OEM GC environment, you will have the GUI method and the manual method. The reason for writing this post is that I was able to remove all targets from within … Continue reading →

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Unable to monitor ORA-errors in alertlog for 10.2.0.5 databases

Posted on February 8, 2011 by marcel

There is a problem monitoring Oracle 10.2.0.5 databases in OEM. Alerts for ORA- errors that appear in the alertlog of 10.2.0.5 databases won’t get generated and you will not be able to view the alertlog (time range) for databases of … Continue reading →

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