Creating a User Domain Without Oracle Grid Infrastructure and Oracle Database

5.17 Creating a User Domain Without Oracle Grid Infrastructure and Oracle Database

A user domain can be created without Oracle Grid Infrastructure and Oracle Database installed on the system. The new user domain has the following characteristics:

Operating system image is Oracle Linux
Access to the management, client, and InfiniBand networks
No Oracle Grid Infrastructure and Oracle Database is installed

The following procedure creates a user domain without Oracle Grid Infrastructure and Oracle Database installed:

Allocate new, unused, IP addresses and host names for the new user domain. IP addresses and host names are needed for the management network, client (SCAN) network, and the private InfiniBand network.

Note:

Ensure the intended InfiniBand network IP addresses are unused by using the ping command for each address. The ibhosts command cannot be used to determine all InfiniBand network IP addresses in use because it does not contain entries for user domains.
If necessary, obtain an updated user domain (domU) system image file.

The exadata.img.domu_maker command that you will run later in this procedure to create a user domain requires the user domain (domU) system image file System.first.boot.version.img in /EXAVMIMAGES, where version matches the management domain Exadata software version as determined by running the "imageinfo -ver" command in the management domain.

For example, when exadata.img.domu_maker is run to create a new user domain and the management domain Exadata software version is 12.1.2.1.1.150316.2, the user domain (domU) system image file /EXAVMIMAGES/System.first.boot.12.1.2.1.1.150316.2.img must exist.
```
# imageinfo -ver
12.1.2.1.1.150316.2

# ls -l /EXAVMIMAGES/System.first.boot.12.1.2.1.1.150316.2.img
-rw-r--r-- 1 root root 13958643712 Mar 23 12:25 /EXAVMIMAGES/System.first.boot.12.1.2.1.1.150316.2.img
```
If the user domain (domU) system image file does not exist, then it must be obtained from My Oracle Support and placed in /EXAVMIMAGES in the management domain. See My Oracle Support note 888828.1 for additional information.
In the management domain, copy an existing XML configuration file from a deployed user domain to a new file name using the following command:
```
# cp /EXAVMIMAGES/conf/existingDomainName-vm.xml /EXAVMIMAGES/conf/newDomainName-vm.xml
```
In the preceding command, existingDomainName-vm.xml is the XML configuration file of the deployed user domain, and newDomainName-vm.xml is the name of the new file.

In the following example, the configuration file for user domain "dm01db01vm01" is copied to nondbdomain-vm.xml.
```
# cp /EXAVMIMAGES/conf/dm01db01vm01-vm.xml /EXAVMIMAGES/conf/nondbdomain-vm.xml
```
In the management domain, edit the new XML file as follows:
1. Change all <Hostname> tags to match the new host names for the respective networks.
2. Change all <IP_address> tags to match the new IP addresses for the respective networks.
3. Change the <virtualMachine> tag to contain the new host name.
4. Change the <hostName> tag to contain the new host name.
5. Delete the entire <disk id="disk_2"> and <disk id="disk_3"> elements, including all their sub-elements. You must delete the entire entry between the starting <disk> tag to the corresponding closing </disk>.

In the management domain, allocate InfiniBand network GUIDs for the new user domain using the /opt/exadata_ovm/exadata.img.domu_maker command.

# /opt/exadata_ovm/exadata.img.domu_maker allocate-guids \
     /EXAVMIMAGES/conf/newDomainName-vm.xml              \
     /EXAVMIMAGES/conf/final-newDomainName-vm.xml

In the management domain, create the new user domain using the /opt/exadata_ovm/exadata.img.domu_maker command.

# /opt/exadata_ovm/exadata.img.domu_maker start-domain \
     /EXAVMIMAGES/conf/final-newDomainName-vm.xml

Parent topic: Managing Oracle VM User Domains