Oracle Enterprise Manager 13c and Always On Monitoring

Oracle Enterprise Manager 13c and Always On Monitoring

In this cloud-era it’s almost weird to explore stuff on-premises, but I did….  In this case a slightly Higher Availibility configuration of Oracle Enterprise Manager (OEM) that doesn’t  cost anything, is not disruptive to the existing configuration and gives a tiny bit more confidence during patching of OEM : Always On Monitoring (AOM).  Maybe a bit underrated functionality – within Oracle .

When Oracle Management Server (OMS) is down for patching, AOM is capable of mailing you when a critical target is down. It’s a limited functionality, but can be quite useful in some cases. Some details has changed since the start in 2016, when DBIservices wrote about it. At the end of the blogpost my findings. (more…)

Oracle licenses needed while monitoring your (non-)Oracle environment with OEM

Oracle licenses needed while monitoring your (non-)Oracle environment with OEM

With Oracle Enterprise Manager (OEM) you are able to monitor an Oracle environment as well as a non-Oracle environment, like Microsoft’s SQL Server.

You are also able to exchange notifications between Oracle Enterprise Manager and e.g. Microsoft’s SCOM. How to monitor this heterogeneous environment. What licenses do you for monitoring? And.. do you need Oracle licenses when sending notifications by mail? Hold on to this thought.

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The curious case of the blank plugin page in OEM13c

The curious case of the blank plugin page in OEM13c

After an upgrade of Oracle Enterprise Manager from 12.1.0.5 to 13.2, I wanted to deploy  a new version of the plugin oracle.sysman.db. Downloaded the new version and got to the plugin-management page to apply the patch. But all I got was a blank page. Cost me quite a while to figure out what the – almost humiliating – workaround / solution eventually was.

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Upgrade OEM 12.1.0.5 OMS to OEM13.2

Upgrade OEM 12.1.0.5 OMS to OEM13.2

Despite the potential of Oracle Management Cloud, I’m a fan of Oracle Enterprise Manager, with its small imperfections. So when noticing a 12c Oracle Enterprise Manager on Linux, and targets on Windows, I took the challenge of modernizing the customer’s environment a bit. And the starting point , 12.1.0.5 for OMS and 12.1.0.2 database as repository wasn’t that bad at all. This post is purely about upgrading the OMS. Upgrading agents is a different story with Windows as target.

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