3.2. Oracle VDI System Requirements

3.2.1. Oracle VDI Hardware Requirements
3.2.2. Supported Installation Platforms for Oracle VDI
3.2.3. Requirements for Oracle Linux Platforms
3.2.4. Requirements for Oracle Solaris Platforms
3.2.5. Time Synchronization

3.2.1. Oracle VDI Hardware Requirements

Oracle VDI has very basic hardware requirements. Customers can use new or existing hardware, as long as it meets the following requirements:

  • At least one 2.0GHz x86-64 (x64) CPU

  • At least 4GB RAM

  • At least 32GB disk space

These requirements assume the host is used only for Oracle VDI.

Hardware sizing is a very important part of planning an Oracle VDI deployment. Some basic sizing guidelines can be found at Chapter 8, Performance and Tuning. For more detailed assistance with sizing, contact an Oracle Sales or Support representative.

3.2.2. Supported Installation Platforms for Oracle VDI

The following are the supported installation platforms for Oracle VDI:

Operating System

Supported Releases

Oracle Linux (64-bit) on x86 platforms

5.6

Oracle Solaris (64-bit) on x86 platforms

Solaris 10 release 10/09 (update 8) or later

Note: Solaris 11 is not supported.

All the hosts in the same Oracle VDI Center must use the same operating system. The use of mixed operating systems in the same Oracle VDI Center is not supported.

For the best performance on Oracle Linux platforms, use the Oracle Unbreakable Enterprise Kernel.

The supported installation platforms for Oracle VDI can be virtualized, see Section 3.4, “Oracle VDI Centers in Virtualized Environments”.

3.2.3. Requirements for Oracle Linux Platforms

On Oracle Linux platforms, Oracle VDI requires specific packages to be installed. The Oracle VDI installation script checks for these packages before installing the software. If any required packages are missing, the installation script checks that a valid yum repository is configured on the host and then uses the yum command to check whether the packages are available. If the missing required packages are available, you are prompted to continue and the packages are downloaded and installed. If yum repositories are not configured, or the required packages are not available, the installation fails and a list of required packages that must be installed is displayed. You must resolve these dependencies before you can install Oracle VDI. The check for the required packages is only performed for fresh installations of Oracle VDI.

Before you install the software, it is best to ensure that yum is configured correctly and that it is working.

Oracle VDI requires that an Oracle Linux system is running in runlevel 5 (full multi-user mode with an X-based login screen).

Checking the Status of the iSCSI daemon

The iSCSI daemon must be running on the Oracle VDI host. Use the following command to check:

/etc/init.d/iscsi status

If the daemon is not running, start it with the following command:

/etc/init.d/iscsi start

SELinux Configuration

If the SELinux setting is enforcing, Oracle VDI installs correctly but configuration fails. Change the SELinux setting to permissive or disabled, by using the SELinux Administration Tool (system-config-selinux), or the /usr/sbin/setenforce 0 command (this command changes the setting to permissive).

3.2.4. Requirements for Oracle Solaris Platforms

On Oracle Solaris platforms, you must install the Entire distribution to get the libraries required by Oracle VDI. If you use Solaris zones, Oracle VDI must be installed in the global zone. Installation in a non-global zone is not supported.

Oracle VDI requires that an Oracle Solaris system is running in runlevel 3 (multi-user level with NFS resources shared).

3.2.5. Time Synchronization

It is important to synchronize the time on Oracle VDI hosts. Use Network Time Protocol (NTP) software to ensure the time on all hosts is synchronized.

When you configure Oracle VDI, a check is made as to whether NTP is configured on the host. If NTP is not configured, the first host (the primary) added to the Oracle VDI Center is automatically configured as an NTP server, and the secondary hosts in the Oracle VDI Center automatically synchronize their times with the primary. If NTP is configured but the time on a host is not synchronized, a warning displays when you configure Oracle VDI.