March 2017 archive

Mar 10

Check which Hub Node is Leaf Node connected to in Oracle Flex Cluster

In this article, I will show how to detect to which Hub Node is your Leaf Node connected to in an Oracle Flex Cluster scenario where you have multiple Hub Servers. First of all, let's check our current scenario: [oracle@oranode3 ~]$ crsctl get node role status -all Node 'oranode1' active role is 'hub' Node 'oranode2' …

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Mar 09

OCM 12c Preparation - Download the Exam Environment

The exam environment keep changing over the time and I believe that Oracle will soon update the Linux and Database release to the latest. As Mar/2017, the exam environment in official OCM website is the following: Exam Environment Oracle Linux Release 6.5 64 bit Oracle Database 12c Enterprise Edition Release 12.1.0.2.0  64 bit Oracle Grid Infrastructure 12c Release …

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Mar 07

OCM 12c Preparation - Recommended Hardware

As we will need to create RAC (with Hub and Leaf Nodes), Dataguard (with Far Sync instance), Single Instance and Oracle EM machines scenarios, let's consider a scenario where we will need to simulate 4 VMs running at the same time. So, you will need at least: 16 GB RAM Quad core fast CPU (Something similar or better …

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