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Grid Control

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Enterprise Manager Cloud Control 12c Release 2…

Enterprise Manager Cloud Control 12c Release 2 was released a couple of days ago for all the major platforms. That in itself is not news any more, but the fact we are going to trial it at work as a replacement for our 11g Grid Control installation is.

It’s in my low priority task list, so I’m not sure I’ll get it all sorted before OOW12, but it is something to look forward too. I know it’s tragic, but I’m quite excited. :)

Cheers

Tim…

Sometimes Grid Control Drives Me Nuts…

I’m a big fan of Enterprise Manager Grid Control. The performance page and all the drill-downs from there are awesome. Having said that, there are loads of things where it is such a pain in the ass.

Some incidents spring to mind:

Availability Infrastructure & Management SIG March 14th 2012

I am proud to be able to speak at the first instalment of the Availability, infrastructure and management SIG on March 14th in  the London City office.

The event is announced on the UKOUG website here:

http://www.ukoug.org/events/ukoug-availability-infrastructure-and-management-sig-meeting/

Unfortunately I will be between you and lunch! I hope that works out, and I don’t overrun.

Announcement: Release 1.1.2 of MySQL Plug-in for Oracle Enterprise Manager 10g/11g

This release is just a quick bug fix release of an older 1.1.1 version of the plug-in. It’s long overdue but I’ve managed to fix “” problem only couple weeks ago. I’ve distributed the new version to the folks who have reached out to me by email of via blog reporting the issue in the [...]

Troubleshooting Oracle agent 12.1.0.1.0

As you may have read on this blog I recently moved from Oracle Enterprise Manager 11.1 GRID control to the full control of the cloud-12.1 has taken its place in the lab.

I also managed to install agents via self download (my OEM is x86 to reduce the footprint) on a 2 node 11.2.0.3 cluster: rac11203node1 and rac11203node2. After a catastrophic crash of both nodes followed by a reboot none of the agents wanted to report back to the OMS.

The difference

Oracle 12.1 has a new agent structure: where you used the agent base directory in previous releases to create the AGENT_HOME this now changed. In 11.1 I could specify the agent base to be /u01/app/oracle/product, and OUI would deploy everything in a subdirectory it creates, called agent11g (or agent 10g for 10.2.x).

Now I set the agent base to the same value and installed my agents in parallel, but found that there is no agent12c directory under the base. Instead I found these:

Move the EM12c repository database

I have made a little mistake creating a RAC database for the OEM 12c repository-I now need a little more lightweight solution, especially since I’m going to do some fancy failover testing with this cluster soon! An 11.2.0.3 single instance database without ASM, that’s what I’ll have!

Now how to move the repository database? I have to admit I haven’t done this before, so the plan I came up with is:

  1. Shut down the OMS
  2. Create a backup of the database
  3. Transfer the backup to the destination host
  4. Restore database
  5. Update OEM configuration
  6. Start OMS

Sounds simple enough, and it actually was! To add a little fun to it I decided to the use a NFS volume to backup to. My new database host is called oem12db, and it’s running Oracle 11.2.0.3 64bit on Oracle Linux 6.1 with UEK. I created the NFS export using the following entry in /etc/exports:

Oracle Database on Oracle Linux 6.1…

I mentioned the day before Open World I put a Virtual RAC on Oracle Linux 6.1 article live. Although the procedure was complete, some of the screen shots were from an old article as I didn’t have time to redo them before my flight. :) I’ve just run through the procedure again and taken new screen shots. As a result, I’ve allowed the article to display on the front page of the website, which is why you will see it listed as a new article there.

This kinda rounds out the whole Oracle on 6.1 stuff as there has been a single instance installation guide out for ages and more recently the Cloud Control installation, which references it.

Remember, it’s still not certified yet, but it’s coming.

Cheers

Tim…




First Impressions of EM12C

One of the major announcements at Oracle Open World last week was the launch of Oracle Enterprise Manager 12c, though I’m going to refer to the product as em for the rest of this blog. EM is a product that I both love and which completely infuriates me from time to time. Its worth understanding [...]

Installing Oracle Enterprise Manager 12c on OL 5.7

I have been closely involved in the upgrade discussion of my current customer’s Enterprise Managers setup from an engineering point of view. The client uses OEM extensively for monitoring, alerts generated by it are automatically forwarded to an IBM product called Netcool.

Now some of the management servers are still on 10.2.0.5 in certain regions, and for a private cloud project I was involved in an 11.1 system was needed.The big question was: wait for 12.1 or upgrade to 11.1?