2 Preparing Your Environment

This section provides guidelines for deploying Oracle Enterprise Manager Ops Center in a way that meets your needs, explains the steps needed to verify that your systems meet the prerequisites, and provides instructions for obtaining the software.

When you have completed the planning and preparation procedures described here, you are ready to install the software.

2.1 Planning the Deployment

Before you prepare the systems for an Oracle Enterprise Manager Ops Center installation, you must plan your deployment. Your network configuration, your Internet connection policies, and the numbers and types of assets you intend to manage all affect the optimum deployment. Before installing, consider the following questions:

Table 2-1 Deployment Questions

Question	Information in This Chapter	Other Information	Your Answer
How will you use Oracle Enterprise Manager Ops Center?	About Using Oracle Enterprise Manager Ops Center	Feature Reference Guide	-
Will you manage virtual assets?	About Managing Virtual Assets	Feature Reference Guide	-
How many assets will you manage?	About Scaling Your Environment	Feature Reference Guide, Administration Guide	-
Are your systems supported?	About Supported Systems	Certified Systems Matrix	-
Will you manage Oracle Solaris 11?	About Oracle Solaris 11	Feature Reference Guide	-
Will you manage Oracle SuperCluster or other Oracle Engineered Systems?	About Engineered Systems	Feature Reference Guide	-
What type of network configuration will you use?	About Network Configuration Types	Feature Reference Guide	-
Will you use Connected Mode or Disconnected Mode?	About Connection Modes	Infrastructure chapter of the Administration Guide	-
Does your site require High Availability?	About High Availability	High Availability chapter of the Administration Guide	-
Will your site use a local or a remote database?	About Database Options	Database Management chapter of the Administration Guide	-
Will you integrate with Oracle Enterprise Manager Cloud Control?	About Oracle Enterprise Manager Cloud Control Integration	System Monitoring Plug-in for Oracle Enterprise Manager Ops Center	-

2.1.1 About Using Oracle Enterprise Manager Ops Center

The Oracle Enterprise Manager Ops Center software provides management for hardware, operating systems, firmware and OS updates, for both physical and virtual assets. The number of types of assets, the total number of assets, and the methods you use to manage the assets all affect resource utilization.

Although the Enterprise Controller and the Proxy Controller can run on the same server, this is recommended only for a small-scale site. In most cases, your site benefits from running one or more Proxy Controllers on separate systems. At large-scale sites, deploy a Proxy Controller on each subnet.

Note:

If you intend to provision or update Oracle Solaris 11, you must install the Enterprise Controller and at least one Proxy Controller on Oracle Solaris 11. The Oracle Solaris 11 library can only be installed on an Oracle Solaris 11 system.

Hardware Management

To monitor and manage hardware, the Proxy Controller discovers assets and then polls each asset for status and configuration changes. The Proxy Controller initiates network sessions to the hardware's systems management Ethernet port, using specific server and chassis-type protocols. Using the software to manage only hardware assets has a low resource impact on the system running the software. However, network traffic from the Proxy Controller to the assets can have a high impact. Make sure Proxy Controllers are scaled appropriately.

Hardware Management + OS Provisioning

OS provisioning is executed from the Proxy Controller. The job management system meters the number of OS provisioning jobs that can occur in parallel, but OS provisioning also creates a load on the Proxy Controllers and network. Configure a Proxy Controller on each subnet to provision the assets on that subnet. In addition, configure an NFS server close to the Proxy Controllers to store the OS images and firmware images.

Hardware Management + OS Provisioning + OS Updates

To update an OS, an Agent Controller must be deployed on the operating system and both update and provisioning jobs must be completed. The jobs include several transactions to determine the operating system's required updates and to perform the update operation. These operations increase the network utilization of the Enterprise Controller and Proxy Controllers.

Hardware Management + OS Provisioning + OS Updates + Virtualization Management

Beginning with Oracle Solaris 10 assets, you can manage virtual hosts such as Oracle Solaris Zones and Oracle VM Server for SPARC. Managing these virtual hosts exposes significantly large operating system metrics and increases the memory utilization of the Enterprise and Proxy Controllers. For information about deployment considerations and scaling guidelines, contact your Oracle representative.

2.1.2 About Managing Virtual Assets

The Oracle Enterprise Manager Ops Center software can manage your virtual assets, such as Oracle Solaris Zones or Oracle VM Server.

Using Zones

When you use the Oracle Enterprise Manager Ops Center software's user interface to create or discover a zone, the software has full access to the zone configuration data and can manage the zone. Zones are displayed in the Navigation tree and are labeled by type.

Do not use the software to create or manage zones if your site uses Boot Environments to update operating systems of zones. Alternate Boot Environment (ABE) is not supported for zones or for the Enterprise Controller or Proxy Controller systems.

Do not install a Proxy Controller in an Oracle Solaris 10 non-global zone if you intend to use the product to provision operating systems or firmware.

You can install the Enterprise Controller software on a non-global zone but with these constraints:

The non-global zone must be a whole root zone.
The Proxy Controller cannot be located in the same zone.
The Proxy Controller cannot be located in the global zone that supports the Enterprise Controller's non-global zone.
No Agent Controller software can be installed on the global zone that supports the Enterprise Controller's non-global zone.

Using Oracle VM Server

Use Oracle VM Server for SPARC or Oracle VM Server for x86 to create multiple virtual machines on one physical hardware system. Unlike Oracle Solaris Zones that use the same operating system in all non-global zones, virtual machines can run instances of different operating systems, or different versions of the same operating system. Each instance has its own operating system, resources, and identity.

2.1.3 About Scaling Your Environment

Oracle Enterprise Manager Ops Center can be scaled to accommodate a variety of environments. However, the size and layout of your environment can effect the number of Enterprise Controllers and Proxy Controllers that you require.

An Enterprise Controller can manage up to 5,500 hardware assets, or 3,500 mixed assets including hardware, operating systems, virtualization technologies, and other assets. Each Proxy Controller can manage up to 1,000 assets.

However, installing additional Proxy Controllers beyond the minimum requirements can be beneficial in some environments. Consider installing additional Proxy Controllers in environments with the following characteristics:

Remote datacenters: If some of your assets are in a remote location, installing a Proxy Controller in that location can reduce network latency and cache Oracle Enterprise Manager Ops Center content closer to the assets.
Deployment through firewalls: If you have firewalls between your Enterprise Controller and some managed assets, having a Proxy Controller near the assets can simplify deployment and management.
High Availability: Installing additional Proxy Controllers gives you the ability to migrate assets between Proxy Controllers for maintenance or in case of a Proxy Controller failure
Virtualization: If you intend to manage virtualization technologies like Oracle VM Servers for SPARC, additional Proxy Controllers can help to handle the added asset and job load.

2.1.4 About Supported Systems

Oracle Enterprise Manager Ops Center is supported on a wide variety of hardware, operating systems, and virtualization technologies. Review the Oracle Enterprise Manager Ops Center Certified Systems Matrix, which lists the certified systems, before beginning your installation.

An Enterprise Controller system must meet the following requirements:

SPARC or x86 platform that is running a supported Oracle Solaris or Linux OS, such as Oracle Solaris 11, Oracle Solaris 10 9/10, or Oracle Linux 5.5.

Note:
To provision and update Oracle Solaris 11 operating systems, the Enterprise Controller and Proxy Controller must be installed on Oracle Solaris 11.
87 GB of disk space.
8 GB Swap Space.
8 GB Memory.

2.1.5 About Oracle Solaris 11

You can provision, update, and manage Oracle Solaris 11 with Oracle Enterprise Manager Ops Center. You can only provision and update Oracle Solaris 11 assets and engineered systems, such as Oracle SuperCluster, when the Enterprise Controller and the Proxy Controllers that manage the assets are installed on Oracle Solaris 11 systems.

If you are using Oracle Solaris 11, it is recommended that you use version 11.1 or greater.

If you are installing your Enterprise Controller on an Oracle Solaris 11 system, you have several options for configuring your Oracle Solaris 11 library.

If your site already maintains an Oracle Solaris 11 IPS Repository, direct Oracle Enterprise Manager Ops Center to use it instead of initializing a new one. You can do this during the product installation or after the product is installed. See Using an Alternate IPS Repository in the Software library chapter of the Feature Reference Guide.
During installation of the product software, initialize the library. This library downloads content from the https://pkg.oracle.com/solaris/support repository and continues to sync with the repository routinely. However, the initialization of the library can take many hours, depending on your site's access.
After installation, initialize the library using the Initialize Oracle Solaris 11 Software Update Library action. This action performs the same operation as the installation option with the same time requirements.
At any time, you can create an IPS repository at your site and use it as the Oracle Solaris 11 Software Update Library. See the Copying and Creating Oracle Solaris 11 Package Repositories at http://docs.oracle.com/cd/E23824_01/html/E21803/toc.html

See the Software Libraries chapter of the Feature Reference Guide for more information about creating and managing Oracle Solaris 11 libraries.

Note:

If you are installing an Enterprise Controller on Oracle Solaris 11, your Oracle Solaris 11 repository must contain the specific version of Oracle Solaris 11 installed on the Enterprise Controller.

2.1.6 About Engineered Systems

Oracle Enterprise Manager Ops Center can discover and manage Oracle SuperCluster and other Oracle engineered systems. However, because Oracle SuperCluster uses Oracle Solaris 11, you must install your Enterprise Controller on Oracle Solaris 11 if you plan to manage Oracle SuperCluster.

2.1.7 About Network Configuration Types

If you intend to provision OS or firmware on target systems on a subnet, configure one Proxy Controller on each subnet and then enable DHCP services on the Proxy Controller. Proxy Controllers provide the DHCP services that support the netboot or PXE boot operations of target systems.

WAN boot is available for SPARC-based ILOM systems when the Enterprise Controller is running on an Oracle Solaris OS on either a SPARC or X86 platform. Oracle Enterprise Manager Ops Center automatically sets up the WAN boot connection. This is the default connection for SPARC-based platforms and for Oracle Solaris 11.

Depending on your environment's network security, you might need to make changes to your firewall to allow Oracle Enterprise Manager Ops Center to send and receive data normally. See the Oracle Enterprise Manager Ops Center Security Guide for more information.

2.1.7.1 About Network Requirements

Use these guidelines to configure a network switch for a system running the Oracle Enterprise Manager Ops Center software.

Use an 8-port or 16-port Virtual LAN (VLAN) switch.
Discover and manage the switch.
If your site uses VLAN, create a separate VLAN for management and provisioning networks.
Disable spanning-tree protocols on the switch.

For Ethernet connectivity:

The management network must be a 1/10 GB connection.
The provisioning and data networks must be a 1/10 GB connection.

In Connected Mode, the Enterprise Controller also needs to get access to vendor Web sites to download updates or other software.

The following sections describe the communication requirements for the Oracle Enterprise Manager Ops Center software.

Network Requirements and Data Flow

At least one Proxy Controller must be installed and configured. You use the co-located Proxy Controller installed with the Enterprise Controller software or install one or more Proxy Controllers on separate systems. The following diagram shows a network configuration for a site running the Oracle Enterprise Manager Ops Center software in Connected Mode and with two Proxy Controllers.

Figure 2-1, "Network Ports and Protocols for Enterprise Controller in Connected Mode" shows the network ports and protocols for the Enterprise Controller in Connected Mode.

Figure 2-1 Network Ports and Protocols for Enterprise Controller in Connected Mode

Description of "Figure 2-1 Network Ports and Protocols for Enterprise Controller in Connected Mode"

Ports and Protocols

The Enterprise Controller's default port is 443. If port 443 is in use, the Enterprise Controller uses Port 11165. The Oracle Enterprise Manager Ops Center Ports and Protocols Guide describes the required ports and their protocols.

2.1.7.2 Example Network Configuration

This section provides an example network configuration and connectivity information for Oracle Enterprise Manager Ops Center. Other configurations are possible, such as using separate switches for each network. You can implement your network using any combination of VLANs and switches. Each network, whether management, provisioning, or data, must be assigned to separate VLANs.

Separate Management, Provisioning, and Data Networks

Network connections are needed for data operations, for management operations, and for provisioning operations. The minimum network configuration, but least secure, is to combine all operations on one network. Separate networks, as shown in Figure 2-2, "Example Network Configuration", provide the highest security and the lowest number of points of failure. However, additional network interface cards (NIC) are needed to support this configuration.

Figure 2-2 Example Network Configuration

Description of "Figure 2-2 Example Network Configuration"

A configuration with separate management, provisioning, and data networks has the following requirements:

Enterprise Controller or Proxy Controller
- ETH0 connects the Enterprise Controller/Proxy Controller to the corporate network for external access. Configure the ETH0 IP address, netmask, and gateway to meet corporate connectivity requirements.
- ETH1 connects the Enterprise Controller/Proxy Controller to the provisioning network, and must be on the same network as the ETH0 connections of the Agent Controllers. Only the Enterprise Controller/Proxy Controller and the Agent Controllers must reside on the provisioning network. ETH1 must be a 1 Gb NIC interface.
- ETH2 connects the Enterprise Controller/Proxy Controller to the management network, and must be on the same network as the management port connections of the Agent Controllers. Configure the ETH2 IP address, netmask, and gateway to enable connectivity to the Agent Controllers' management port IP addresses. ETH2 must be a 100 MB NIC interface.
- The DHCP service allocates IP addresses to the Agent Controllers for loading operating systems.
Agent Controllers
- Each Agent Controller's management port connects the Agent Controller to the management network, and must be on the same network as the ETH2 connection of the Enterprise Controller/Proxy Controller. The management port must be a 100 MB connection.
- ETH0 connects the Agent Controller to the provisioning network, and must be on the same network as the ETH1 connection of the Enterprise Controller/Proxy Controller. ETH0 must be a 1 GB connection.
- ETH1 connects the Agent Controller to the data network through the switch to provide corporate network access to the Agent Controller. ETH1 must be a 1 GB connection.

2.1.8 About Connection Modes

The Oracle Enterprise Manager Ops Center software operates in either Connected Mode or Disconnected Mode. Because you can change modes easily, you can also consider using a combination of Connected and Disconnected Modes to maintain your data center. You can run the software in Disconnected Mode until you need to access the Knowledge Base or third-party sites and then change to Connected Mode. For example, to check for OS updates, change the Enterprise Controller to Connected Mode, connect to the Internet to check the Knowledge Base, and then return the Enterprise Controller to Disconnected Mode.

Connected Mode

The Enterprise Controller connects to the Internet to download OS updates, Oracle Solaris images, Firmware images, and updates for the Oracle Enterprise Manager Ops Center software itself. This mode of operation is called Connected Mode and is the default setting. If your site policy does not allow an Internet connection, use Disconnected Mode.

If your environment uses a web proxy to reach the Internet, you must provide the web proxy information, including the web proxy name, port, and any necessary login credentials, during the Enterprise Controller configuration process.

Operating in Connected Mode gives you the option of filing service requests (SRs) through the user interface. To use this feature, you must supply valid My Oracle Support (MOS) credentials which are associated with a Customer Service Identifier (CSI) with rights over your assets.

Connected Mode also lets you enable the Auto Service Request (ASR) feature, which automatically files SRs based on incidents in Oracle Enterprise Manager Ops Center. You must provide valid MOS credentials and contact information for your assets before enabling ASR. See the Auto Service Request chapter in the Oracle Enterprise Manager Ops Center Administration Guide for more information about ASR.

Figure 2-3, "Enterprise Controller in Connected Mode" shows the Enterprise Controller in Connected Mode.

Figure 2-3 Enterprise Controller in Connected Mode

Description of "Figure 2-3 Enterprise Controller in Connected Mode"

Disconnected Mode

Disconnected Mode enables you to use the Oracle Enterprise Manager Ops Center software in a secured environment without Internet access. To support provisioning and updating functions, you must load images and updates to the Enterprise Controller manually. Because the Enterprise Controller does not download new software automatically, you must plan how and when your site obtains updated software.

To obtain updates, images, and metadata, you run a product script on an Oracle Solaris or Linux system that is allowed to be connected to the Internet, download a static version of the Knowledge Base (KB), and copy it to the Enterprise Controller. For Oracle Solaris 11, you establish a local Oracle Solaris 11 repository. For other supported operating systems, you can obtain software in a media format such as a DVD, and upload the software to the Local Content section of the product's software library.

See the Using Disconnected Mode guide or the Oracle Enterprise Manager Ops Center Administration Guide for more information about using disconnected mode.

Figure 2-4, "Enterprise Controller in Disconnected Mode" shows the Enterprise Controller in Disconnected Mode.

Figure 2-4 Enterprise Controller in Disconnected Mode

Description of "Figure 2-4 Enterprise Controller in Disconnected Mode"

2.1.9 About High Availability

The design for a High Availability (HA) architecture must consider all single points of failure, such as power, storage, and network connectivity in addition to the software.

2.1.9.1 About High Availability for the Enterprise Controller

You can use Oracle Clusterware to configure high availability for your Enterprise Controller. Oracle Clusterware lets you configure two or more Enterprise Controller systems and switch between them. The user interface uses a virtual IP address (VIP), which always connects to the active Enterprise Controller.

For more information about managing an Enterprise Controller HA configuration, see the High Availability chapter of the Oracle Enterprise Manager Ops Center Administration Guide.

For more information about Oracle Clusterware, see the Oracle Clusterware documentation at http://www.oracle.com/pls/db112/portal.portal_db?selected=16.

Requirements for High Availability

Each system in the cluster must be of the same model and configured identically:
- Processor class
- Number of cores (at least four)
- Amount of memory (at least 8 GB)
- Amount of disk space (at least 100 GB)
- Amount of swap (at least 16 GB, no less than memory)
- Operating system - Must be Oracle Linux 5.6 or 5.7 or Red Hat Enterprise Linux 5.6 or 5.7
- Oracle Enterprise Manager Ops Center software version, including updates
- Network interfaces that are cabled identically to the same subnets
- The name service used on each system must be the same
Configure one shared private network. Gigabit speed is recommended.
Configure at least one shared public network. Gigabit speed is recommended.
Make the following public network addresses available:
- <node#>-vip: One address of this format should be available for each node.
- cluster SCAN address
An EC HA environment must use a customer-managed database on a system other than the Enterprise Controller systems.
The Enterprise Controller libraries must be NFS shares that are accessible by every Enterprise Controller system.
Configure a shared storage solution. This can be:
- A shared NFS filesystem configured for root access by each node.
- Shared SAN storage with at least one FibreChannel LUN connected to each server with identical /dev/dsk and /dev/rdsk names.

Limitations

User accounts and data that are not associated with Oracle Enterprise Manager Ops Center are not part of the failover process. Only Oracle Enterprise Manager Ops Center data is moved between the primary and secondary Enterprise Controllers.
UI sessions are lost on failover.
The HA configuration applies only to the Enterprise Controller.

2.1.9.2 About High Availability for Proxy Controllers

High availability for Proxy Controllers is a feature of the software. If a Proxy Controller fails or is uninstalled, you are prompted to migrate assets to another Proxy Controller if one is available. Alternatively, you can enable automatic failover, which automatically migrates assets to another Proxy Controller if their current Proxy Controller becomes unreachable. In either case, you can manually move assets to a new Proxy Controller at any time.

To migrate an asset to a new Proxy Controller, the destination Proxy Controller must either be connected to the networks of the assets being moved, or be associated with those networks and have them enabled. The destination Proxy Controller must also be online and reachable.

For more information about Proxy HA and asset migration, see the High Availability chapter of the Oracle Enterprise Manager Ops Center Administration Guide.

2.1.10 About Database Options

Oracle Enterprise Manager Ops Center stores product data in an Oracle Database Enterprise Edition database. This database can be an embedded database installed on the same system as the Enterprise Controller, or a customer-managed database that is accessible to the Enterprise Controller system. If you plan to implement high availability for the Enterprise Controller, you must use a customer-managed database.

The backup option described in the Oracle Enterprise Manager Ops Center Administration Guide can be used to back up an environment with either an embedded or a customer-managed database. If you are using a customer-managed database, you can also back up the database schema using the existing backup and recovery processes implemented by your database administrator.

Note:

Running any database other than the Oracle Enterprise Manager Ops Center database on the Enterprise Controller system is not recommended.

2.1.10.1 Preparing for an Installation with an Embedded Database

To prepare for an installation with an embedded database, you must verify that the Enterprise Controller system meets the requirements for an Oracle Database Enterprise Edition installation as described in the Oracle Enterprise Manager Ops Center Sizing and Performance Guide.

You must also download the installation bundles for Oracle Database Enterprise Edition version 11.2.0.3 if you are installing Oracle Enterprise Manager Ops Center version 12.2.1 or earlier, or Oracle Database Enterprise Edition version 11.2.0.4 if you are installing Oracle Enterprise Manager Ops Center version 12.2.2. The procedure for downloading these files is included in the installation chapters.

2.1.10.2 Preparing for an Installation with a Customer-Managed Database

To prepare for an installation with a customer-managed database, you must verify that the Enterprise Controller and the database system meet the requirements as described in the Oracle Enterprise Manager Ops Center Sizing and Performance Guide.

Use the following initialization parameters for the database:

locale=UTF8
character set=AL32UTF8
sql92_security=TRUE

If you are implementing high availability, the remote database system must be accessible for all of the Enterprise Controller nodes.

2.1.11 About Oracle Enterprise Manager Cloud Control Integration

You can use the Infrastructure Stack plug-in to connect the monitoring capabilities of Oracle Enterprise Manager Cloud Control and Oracle Enterprise Manager Ops Center.

The plug-in module extends the Oracle Enterprise Manager Cloud Control monitoring features to include the additional infrastructure layers below the operating system that are provided by Oracle Enterprise Manager Ops Center, including:

Virtual assets, including Oracle Solaris Zones and Oracle Solaris VM Server for SPARC domains and guests
Service processors
Server containers (chassis)
Oracle SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Server domains

For more information about using the plug-in to integrate Oracle Enterprise Manager Ops Center and Oracle Enterprise Manager Cloud Control, see the Oracle Enterprise Manager System Monitoring Plug-in for Oracle Enterprise Manager Ops Center guide.

2.2 Preparing Systems

Once you have planned your installation, you must prepare the systems for installation. Verify that your Enterprise Controller and Proxy Controller systems meet the system requirements, verify that you have the required account access, and verify that your directories are properly configured for Oracle Enterprise Manager Ops Center storage.

2.2.1 Checking the System Requirements

Before installing Oracle Enterprise Manager Ops Center, verify that the Enterprise Controller and Proxy Controller systems meet the prerequisites. The OC Doctor utility can check a system to verify that it meets all of the prerequisites for an Enterprise Controller or Proxy Controller system.

The Oracle Enterprise Manager Ops Center software requires a full installation of Oracle Linux or Red Hat Enterprise Linux. When you install the operating system, install all optional software components in every software category except the Language category. Set the SELinux security setting to Disabled.

You can install Agent Controllers on a wide set of operating systems, including Oracle Enterprise Linux, Red Hat Enterprise Linux, and Oracle Solaris.

See the Oracle Enterprise Manager Ops Center Certified Systems Matrix for lists of supported operating systems for Agent Controller installation and management, hardware and other technologies supported for management, and browsers supported for accessing the UI.

2.2.1.1 Checking the Enterprise Controller System

The OC Doctor can check the system on which you plan to install the Enterprise Controller to verify that it meets the prerequisites.

To Check the Enterprise Controller System

Download the OC Doctor utility. The OC Doctor can be found at http://java.net/projects/oc-doctor/downloads and is labeled as OCDoctor-LATEST.zip.
Transfer the zipped file to the Enterprise Controller system.
Extract the OC Doctor utility.

Run the OC Doctor utility with the --ec-prereq option.

For example:

# ./OCDoctor.sh --ec-prereq
Ops Center Doctor 4.05  [OC 12.1.0.1988,SunOS10]
========== Checking 12c Enterprise Controller Requirements ... ====================
OK: This prerequisites script is for 12c EC. Run --ec-prereq-11g if you need the old version
OK: Size of Main Memory: 8192 MB
OK: Size of swap space is good for local or remote database installation:  8197 MB
OK: Found enough disk space on /var/opt/sun/xvm (117G)
OK: Found enough disk space on /opt (117G)
OK: Found enough disk space on /tmp (14G)
OK: Installed Solaris Package Cluster: SUNWCall
OK: Solaris 10 u10 found
<Output omitted>

The OC Doctor displays a warning and a suggested solution for each issue.

Correct any issues discovered by the OC Doctor utility.

2.2.1.2 Checking the Proxy Controller System

The OC Doctor can check the system on which you plan to install a Proxy Controller to verify that it meets the prerequisites.

To Check the Proxy Controller System

Download the OC Doctor utility. The OC Doctor can be found at http://java.net/projects/oc-doctor/downloads and is labeled as OCDoctor-LATEST.zip.
Transfer the zipped file to the Proxy Controller system.
Extract the OC Doctor utility.

Run the OC Doctor utility with the --proxy-prereq option.

For example:

# ./OCDoctor.sh --proxy-prereq
Ops Center Doctor 4.05  [OC 12.1.0.1988,SunOS10]
========== Checking 12c Proxy Controller Requirements ... ====================
OK: This prerequisites script is for 12c Proxy. Run --proxy-prereq-11g if you need the old version
OK: Size of Main Memory: 8192 MB
OK: Size of swap space: 8197 MB
OK: Found enough disk space on /var/opt/sun/xvm (117G)
OK: Installed Solaris Package Cluster: SUNWCall
OK: Solaris 10 u10 found
<Output omitted>

The OC Doctor displays a warning and a suggested solution for each issue.

Correct any issues discovered by the OC Doctor utility.

2.2.1.3 Checking Cache Requirements

The Oracle Enterprise Manager Ops Center software uses a central file cache for the following types of content:

For provisioning hardware or an OS:
- Firmware
- OS Images
For updating assets:
- Knowledge Base metadata that specifies the updates for an OS distribution
- Packages, patches, and RPM files that are a standard part of an OS update distribution
- Custom content for a site such as software bundles, configuration files, or scripts.

The software propagates content from the cache. For example, a Proxy Controller downloads content from the Enterprise Controller, and an Agent Controller downloads content from the Proxy Controller. After content is cached, it can be re-used without additional download operations.

Cache Recommendations for Connected Mode Configurations

The minimum cache size is 74 GB on Enterprise Controllers and Proxy Controllers. Increase the minimum cache size based on the following guidelines:

2 GB for software installation (in /opt and /var/tmp)
4 GB for each OS image used for provisioning
10 GB for each distribution for updates

Because Agent Controllers store only update content for their OS instance, they have reduced caching requirements. Allow 2 GB for both the software and the update cache.

Example 2-1 Updating Several Operating System Assets

A user runs a job which updates five Oracle Solaris 10 SPARC OS Agent Controllers managed by a single Proxy Controller. The Proxy Controller downloads and caches all of the patches required by the Agent Controllers. Each Agent Controller downloads and caches the patches it requires. If an Agent Controller has cached several updates already, it re-uses those updates and downloads only what it needs from the Proxy Controller.

Example 2-2 Provisioning an Operating System Asset on Several Servers

A user runs a job to provision an OS image to three systems which are managed by two Proxy Controllers. Each Proxy Controller downloads and caches the image. The three systems do not cache the OS image, because they download and install the images from their respective Proxy Controllers.

The installations can use the co-located Proxy Controller, installed on the same OS instance as the Enterprise Controller. The Proxy and Enterprise Controllers share a global file cache so no additional disk space is required for the Proxy Controller's cache.

Example 2-3 Provision and Update Different Operating Systems on Several Servers

A site uses an Enterprise Controller with a co-located Proxy Controller and one other Proxy Controller, which together do the following:

Provision Oracle Solaris 10 X86 and SPARC 10/08 and Oracle Linux 5.5, using one ISO image for each distribution.
Update the Oracle Solaris 10 X86, Oracle Solaris 10 SPARC and Oracle Linux 5 32-bit X86 distributions. The remote Proxy Controller provisions and updates Oracle Solaris 10 systems on both SPARC and X86 architectures.

Both the Enterprise Controller with its co-located Proxy Controller and the remote Proxy Controller need a cache size of 74 GB, with 2 GB in /var/tmp and /opt, and 72 GB in /var/opt/sun/xvm. No additional caching is required on the Enterprise Controller because the co-located Proxy Controller shares its cache. The Enterprise Controller must have a minimum cache size of 44 GB:

30 GB for the three OS update distributions in /var/opt/sun/xvm
12 GB for the three OS images in /var/opt/sun/xvm
2 GB for the software in /var/tmp and /opt

The remote Proxy Controller must have a minimum cache of 30 GB:

20 GB for the two Oracle Solaris OS update distributions in /var/opt/sun/xvm
8 GB for the two Oracle Solaris OS images in /var/opt/sun/xvm
2 GB for the Oracle Enterprise Manager Ops Center software in /var/tmp and /opt

Cache Requirements for Disconnected Mode Configurations

In Disconnected Mode, the Oracle Enterprise Manager Ops Center software performs without an Internet connection. Images are managed in the same way as in Connected Mode except it is not possible to download Oracle Solaris OS images. Administrators must cache images manually. For OS updates content, administrators must obtain and upload the content:

The Knowledge Base content is available as an archive file, which users can obtain by running the harvester script. Depending on the settings, users can download the KB content only, or they can obtain content for one or more Oracle Solaris baselines.
Patches, packages, or RPMs must be uploaded to the Enterprise Controller.

Proxy Controllers and Agent Controllers function the same way in both Connected and Disconnected Modes and their cache requirements are the same.

2.2.1.4 Checking Disk and Swap Space

The Oracle Enterprise Manager Ops Center software requires the following minimum values for disk and swap space:

At least 70 GB of available disk space after the operating system has been installed
At least 8 GB of swap space

Note:
The swap requirement might be higher if you are using an embedded database. The requirements for a embedded database are documented in the Preparing for an Installation with an Embedded Database section.

2.2.1.5 Checking Values for kernel.shmall and kernel.shmmax

If the /etc/sysctl.conf file has been modified, the values of kernel.shmall and kernel.shmmax might be too small, which causes the product installation to fail. The following values are recommended:

kernel.shmall: 268435456
kernel.shmmax: 4294967295

2.2.1.6 Editing Kernel Settings

When you install Linux, the Xen kernel is set as the default kernel. Setting the standard kernel as the default kernel improves performance. Perform the following procedure on each Enterprise Controller and Proxy Controller system.

Edit the /boot/grub/menu.lst file.
```
# vi /boot/grub/menu.lst
```
Set the value of default to 1.
```
default=1
```
Save the file.
Shut down the system.
```
# shutdown -r now
```
The system now uses the standard kernel by default.

2.2.2 Verifying Account Access

Log into My Oracle Support or register for an account and log in.

To update SUSE Linux systems, you must have a Novell account. Verify that your Novell account allows access to software updates.

2.2.3 Configuring Storage

The /var/opt/sun/xvm/osp/share/allstart directory is configured as an NFS share. If you use ZFS to provide the file system that mounts as /var/opt/sun/xvm, do not use the ZFS sharenfs command to share /var/opt/sun/xvm/osp/share/allstart so that the Oracle Enterprise Manager Ops Center software can use legacy NFS sharing tools to share the /var/opt/sun/xvm/osp/share/allstart directory.

2.3 Obtaining the Software

You can download Oracle Enterprise Manager Ops Center installation bundles from the Oracle Technology Network or from the Oracle Software Delivery Cloud. The next chapter explains how to install and configure the software once you have downloaded it.

2.3.1 Downloading the Software From the Oracle Technology Network

You can download installation bundles for the Enterprise Controller and Proxy Controller from the Oracle Technology Network.

Note:

The Oracle Technology Network provides the checksum and md5 values for Oracle Enterprise Manager Ops Center bundles. You can use these values to verify your downloads.

Log in to the Oracle Technology Network Oracle Enterprise Manager Ops Center page at http://www.oracle.com/technetwork/oem/ops-center/index.html.
Click Enterprise Manager Ops Center in the Enterprise Manager Downloads sidebar.
Select Accept License Agreement.
Click the Enterprise Controller bundle with the correct operating system and architecture to download the full installation bundle.

This bundle contains the Enterprise Controller and Proxy Controller installation files for the selected architecture and operating system, and Agent Controller installation files for every supported operating system and architecture.
Click the Proxy Controller bundle with the correct operating system and architecture to download the Proxy Controller installation bundle.

This bundle is used to manually install remote Proxy Controllers.

2.3.2 Downloading the Software From the Oracle Software Delivery Cloud

You can download installation bundles for the Enterprise Controller and Proxy Controller from the Oracle Software Delivery Cloud.

Log in to the Oracle Software Delivery Cloud at http://edelivery.oracle.com.
Read and accept the Software License Agreement and Export Restrictions, then click Continue.
Select the Oracle Enterprise Manager product pack and the correct platform for your environment, then click Go.

The list of download packs is displayed.
Select the Oracle Enterprise Manager Ops Center 12c Release 1 Media Pack and click Continue.

The list of available bundles is displayed.
Click Download next to the appropriate bundle to download it, then save the downloaded bundle locally.