Chapter 9: Virtualizing Oracle Enterprise Manager 10g

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The Oracle Enterprise Manager 10g Oracle VM template allows customers to quickly deploy Oracle Enterprise Manager 10g/11g using Oracle VM Manager.

The Oracle Enterprise Manager 10g template is comprised of a virtual machine assembly with two pre-configured virtual machines. Both virtual machines use Oracle Enterprise Linux 4 update 5. The first virtual machine hosts the Oracle Management Service (OMS) and an optional YUM repository. The second virtual machine hosts the Oracle Management Repository (OMR). Each virtual machine was created with Oracle best practices, which reduce deployment risk and dramatically shortens deployment timelines. Oracle VM templates are freely available from http://edelivery.oracle.com/linux.

The Oracle Enterprise Manager 10g Oracle VM template is downloaded as two sets of compressed files (14.81 GB total) from http://edelivery.oracle.com/linux. The first set of four files (5.69 GB) is named “Oracle VM Enterprise Manager Grid Control Template for Oracle VM” and the second set of five files (9.12 GB) is named “Yum Repository of Oracle Enterprise Linux 4 and 5 for use with Enterprise Manager Grid Control Template”. The second set of files for the Yum repository is optional.

Figure 1 shows how the Oracle Enterprise Manager 10g Oracle VM template is deployed in to an Oracle VM server farm.

System Requirements

A minimum of one physical servers is required for the Oracle VM Enterprise Manager Grid Control Template.

Oracle VM Server:

Oracle VM Server requires one bare-metal server capable of running at least three virtual machines simultaneously. The recommended minimum hardware requirements for an Oracle VM Server are:

4 CPUs
4 GB RAM
80 GB disk space without the Yum repository
100 GB disk space with the Yum repository

The Oracle Management Repository Virtual Machine:

2 Virtual CPUs
2 GB RAM
5.2 GB disk space in /OVS/seed_pool/ (virtual machine template storage)
33 GB disk space in /OVS/running_pool/ (virtual machine storage)

The Oracle Management Service and the Yum repository Virtual Machine:

2 Virtual CPUs (virtual machine)
2 GB RAM (virtual machine)
16 GB disk space in /OVS/seed_pool/ (virtual machine template storage)
72 GB disk space in /OVS/running_pool/ (virtual machine storage)

Oracle Enterprise Manager 10g Oracle VM Template Installation Steps

There are a total of eight steps to deploy the Oracle Enterprise Manager 10g Oracle VM template. Table 1 lists each step with a brief explanation including an estimated time to completion.

Step	Description	Estimated Time to Completion
1. Download the Template.	Download the Oracle VM Enterprise Manager Grid Control Template from http://edelivery.oracle.com/linuxand place the zip files in the /OVS/seed_pool/ directory.	2 to x hours depending on your Internet connection speed.
2. Unzip and concatenate the file sets and add the yum.img file to the OMS vm.cfg file.	Uncompress the zip files in the /OVS/seed_pool/ directory, then concatenate each set of files and add the yum.img file to the OMS vm.cfg file.	Up to 30 minutes depending on system resources.
3. Create the OMR and OMS virtual machine templates.	With Oracle VM Manager create the OMR and OMS virtual machine templates.	Up to 15 minutes.
4. Create the OMR and OMS virtual machines.	With Oracle VM Manager create the OMR and OMS virtual machines with the OMR and OMS templates.	Up to 6 hours depending on system resources.
5. Start and configure the OMR and OMS virtual machines.	With Oracle VM Manager start the OMR virtual machine, access the console via Oracle VM Manager to enter the setup options. After the OMR virtual machine is configured, start the OMS virtual machine to enter the setup options. Note: The OMR virtual machine must be started first.	Up to 1 hour for each virtual machine.
6. Install OMA on the OMS virtual machine.	Login to the OMS virtual machine as the root and execute the “/installagent.sh” script to install the Oracle Management Agent (OMA) version 10.2.0.4 x86.	Up to 15 minutes depending on system resources.
7. Log into the Enterprise Manager Grid Control portal.	Login to the Enterprise Manager Grid Control portal using the sysman account and the password selected in step 5.	1 Minute.
8. Change the ownership of the OMR and OMS virtual machines.	With Oracle VM Manager use the Deploy action to change the ownership of the OMR and OMS virtual machines from the My Workspace private group to your desired group. Note: Using the Deploy action will create a copy of each virtual machine, which doubles the storage requirements.	Up to 6 hours depending on system resources.

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