Sep 27
I recently lost a clustered Oracle RAC system and had to blow away GRID_HOME and RDMBS_HOME. This meant my cluster-aware install of the Enterprise Manager 13c agents was lost as well. So I simply removed AGENT_HOME. I then removed the OraInventory and proceeded to start from scratch. Once I had Grid Infrastructure up and running …
Apr 06
It is now possible to use Oracle 12c as a repository database for Enterprise Manager 12c Cloud Control. Oracle 12c is almost 2 years old and the first patch set is almost 1 year old. Many medicines and treatments such as beta-blockers, anti-depressants, etc tadalafil cialis come with great risk of ED. Oweing to the …
Nov 25
I have an Oracle EM12c environment (version 12.1.0.3) set up to monitor my production databases. On one database, I occasionally get an alert for the ‘Database Time Spent Waiting (%)’ category. Yet I have disabled this metric in EM. I found out that this metric is a server-side alert. Disabling in the OMS does not …
Jan 31
On a test system, I’ve been getting frequent alerts from Enteprise Manager 12c Cloud Control that my host is running low on swap space. Since this is a test system, and since I know my swap space is just fine, I decided to increase the Warning threshold from 80 to 87%. In doing so, I …
Dec 19
If you’ve followed some of my recent posts, you know that I have been working on extending my existing RAC database cluster to new hardware. I now have my instances running on the new nodes. My applications are now connecting to the new instances. It’s now time to work on some of the behind-the-scenes items. …
Aug 30
On August 20th, Oracle published Note 1484775.1 Database Control To Be Desupported in DB Releases after 11.2. If you use Enterprise Manager to manage and monitor your Oracle databases, you have two options, DB Control and Grid/Cloud Control. DB Control is easy to set up but only interacts with one Oracle database. If you have …
Apr 30
I have recently installed Oracle’s Enterprise Manager 12c for a new environment. Everything was working just fine when I left work last week but when I tried to connect to EM today, I got the following: Error 404–Not Found From RFC 2068 Hypertext Transfer Protocol — HTTP/1.1: 10.4.5 404 Not Found Huh?!?!? What do you …
Apr 26
In my previous post, I talked about how to set a Enterprise Manager blackout with the Agent’s emctl utility on the command line. Everything was working fine until I tried to set a blackout with a clustered database. When trying to set a blackout on a clustered database target you will get an error similar …
Jan 19
I recently upgraded a database from Oracle 10.2.0.3 to Oracle 11.2.0.2. Everything went well. Some time after the upgrade, Grid Control 11g sent me an alert with the following: Agent is blocked. Blocked reason is: Agent is out-of-sync with repository. This most likely means that the agent was reinstalled or recovered. Please contact an EM …
Jan 03
I have been trying to create a Standby database from a new Primary that was recently put into production. I like how Grid Control automates much of the work for me. So Enterprise Manager is my preferred method. I recently ran into a problem using the Add Standby Database wizard in my 11g Grid Control. …
