Cisco Prime Network Gateway High Availability Guide, 4.3.1

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Book Title

Cisco Prime Network Gateway High Availability Guide, 4.3.1

Chapter Title

Installation Overview

Results

Updated:
January 19, 2017

Chapter: Installation Overview

Installation Overview

This chapter provides an overview of the Prime Network gateway high availability installation process and includes these installation-related topics:

Assumptions in This Document

The procedures described in this guide assume the following:

  • Your deployment uses a Prime Network embedded database, not an external database.
  • Your deployment does not have an IPv6 gateway or database.

If your gateway high availability deployment differs from the previous requirements, please contact your Cisco account representative for assistance with planning and installation of the solution.

Installation DVDs

The gateway high availability files are provided on the Prime Network installation DVDs listed in Table 1-1 .

Note If you are upgrading an existing gateway high availability deployment to Prime Network 4.3.1, follow the upgrade procedure described in the Cisco Prime Network 4.3.1 Installation Guide.

 

Table 1-1 Gateway High Availability Installation Scripts
Scripts
Description
Local Redundancy
Geographical Redundancy
Disk 1—RH_ha.zip Contents

install_Prime_HA.pl

Local redundancy—Is run from locally mounted node that has primary database. Installs gateway and embedded database on primary node, and sets up a limited number of elements on secondary node (such as cron jobs, users, groups, SSH keys, and so forth).

In case of geographical redundancy only or geogrpahical + local redundancy, this script will install Prime Network gateway and embedded database on the remote site.

Server P1 (primary database)

Server P2

Server S1

x

—

—

setup_Prime_DR.pl

Geographical redundancy—Is run from node that is running the primary database. Stops the gateway, installs Oracle ADG, and sets up cron jobs for gateway synchronization (GWSync) and ADG monitoring. Also triggers the initial Gateway Sync.

x

—

—
Disk 2—sil-esb-1.2.0.tar.gz Contents (Integration Layer)

installAndConfigureEsb.sh

Installs local redundancy alone or local + geographical redundancy elements for PN-IL.

Note PN-IL supports local redundancy alone, or local + geographical redundancy. It does not support geographical redundancy alone.

x

—

—

itgctl

Configures PN-IL.

x

—

x

il-watch-dog.sh

Controls the PN-IL health monitor.

x

—

x

DMSwitchToSuite.sh

Migrates a standalone PN-IL to suite mode.

x

—

x
Disk 6—infobright_integ.zip Contents (Operations Reports)

primenw_integration.pl

Installs Operations Reports.

x

—

—

Installation Flow

Gateway high availability is provided in three configurations:

  • Local redundancy alone, which uses two active local servers for automatic failover.
  • Geographical redundancy alone, which uses a server at a remote geographical site for a full disaster recovery.
  • Local + geographical redundancy, which uses both of the above.

Note For all gateway HA configurations, the Prime Network gateway software, the embedded Oracle database, and (if installed) the Infobright database must all be installed on the same gateway server.

Table 1-2 shows the high availability deployments that are supported, depending on your Prime Network installation.

 

Table 1-2 Supported HA Deployments Available for Prime Network Installations
Installation
Supported Gateway High Availability Deployments
Local
Geographical
Local + Geographical

Prime Network

x

x

x

Prime Network with Operations Reports

x

x

x

Prime Network with PN-IL

x

x

x1

Prime Network with Operations Reports and PN-IL

x

x

x 1

1.If you want to integrate a PN-IL deployment with Prime Central, Prime Central must have the same configuration.

Table 1-3 and Figure 1-1 provide the general flow for installing and setting up gateway high availability. For detailed instructions on each, see the topics referenced in Table 1-3 .

Note If you are upgrading an existing gateway high availability deployment to Prime Network 4.3.1, follow the upgrade procedure described in the Cisco Prime Network 4.3.1 Installation Guide. If you are upgrading Prime Network in a HA setup, you should always start the upgrade from the Primary gateway as active gateway. The active gateway should not be the secondary gateway when starting the upgrade process.

 

Table 1-3 Installation Flow

Procedure
Flow

Step 1

If you are you going to install gateway high availability with Operations Reports or PN-IL, or integrate with Prime Central, have you read these topics?

Yes: Go to next step.

No: Do not continue until you have read those sections. They contain information on supported configurations.

Step 2

Have you familiarized yourself with the high availability solutions by reading these topics?

Yes: Go to next step.

No: Do not continue until you have read those sections. They contain information on supported configurations.

Step 3

Does the gateway where you will install gateway high availability meet the requirements?

Yes: Go to next step.

No: Do not continue until all specified requirements are met.

Step 4

Have you performed the tasks in these sections?

Yes: Go to next step.

No: Do not continue until all preinstallation tasks are completed.

Step 5

(Local redundancy) When the installation is complete, have you verified the installation according to Verifying the Local Redundancy Setup?

Yes: Go to next step.

No: Do not continue until you have verified the installation,

Step 6

(Local redundancy) Have you completed all post-installation tasks according to Post-Installation Tasks for Local Redundancy?

Yes: Go to next step.

No: Do not continue until you have finished the post-installation tasks.

Step 7

(Geographical redundancy alone or geographical + local redundancy)

Do you want to install Prime Network Operations Reports in your redundancy environment?

Yes: Perform the steps described in Installing Prime Network Operations Report with Gateway High Availability .

No: Go to next step.

Step 8

Do you want to install the Prime Network Integration Layer (PN-IL) in your redundancy environment?

Yes: Perform the steps described in:

No: Installation complete.

Figure 1-1 Installation Flow for Prime Network Gateway High Availability

Using Gateway High Availability with Cisco Prime Central and Other Prime Network Components

Unit High Availability and Gateway High Availability

Gateway high availability is compatible with unit server high availability. However, unit server high availability must be configured separately as described in the Cisco Prime Network 4.3.1 Administrator Guide . Designating active and standby units is not included in the procedures described in this guide.

Operations Reports and Gateway High Availability

The gateway high availability solution also protects Operations Reports data that is stored on the gateway and the Infobright database.

You should install Operations Reports after you have installed the base gateway redundancy solution. Installing gateway high availability for Operations Reports is described in Installing Prime Network Operations Report with Gateway High Availability . When Operations Reports is installed, Prime Network will start the processes required to protect your Operations Reports data. This includes the folders, system files, registry data on the gateway, and event data that is stored in the Infobright database. These are monitored using:

  • The RHCS Infobright database service, ifb :

In case of local redundancy only and local + geographical redundancy configurations, if a hardware or software failure occurs, the RHCS automatically restarts the failed node's services on the functional node. See Table 2-1 for more information.

  • The GWSync process:

Replicates data between the local and remote servers in a geographical redundancy configuration.

  • AVM 45:

AVM 45 runs on the active server and constantly loads data to the backup site in a geographical redundancy configuration. If there is a failover event, archived event data and standard event data from the previous 80 minutes is lost. This is due to the time required to load and validate the data that is saved on the secondary Infobright database.

Inventory data is retrieved from memory (from the inventory snapshot) and is therefore not affected by any high availability events.

Gateway High Availability and the Prime Network Integration Layer (PN-IL)

PN-IL supports all the redundancy configurations as supported by Prime Network, i.e, local only, local + geographical, and geographical only. The RHCS ana service will monitor the PN-IL resources.

Note PN-IL supports all the redundancy configurations as that of the Prime Network. Therefore, if you want to integrate a PN-IL deployment with Prime Central, Prime Central also must have the same configuration.

If you want to use PN-IL, install it after you have installed Prime Network in following HA configurations. See:

Gateway High Availability and Prime Central

Deployments of Prime Network gateway high availability (with or without Operations Reports and PN-IL) can be integrated with Prime Central. Therefore, if you want to integrate a PN-IL deployment with Prime Central, Prime Central also must have the same configuration.

See these documents and topics for more information.

 

Table 1-4 Where to Get Information on Integration with Prime Central
To integrate Prime Central with:
See

Prime Network with or without Operations Reports

Cisco Prime Central High Availability Quick Start Guide

Prime Network plus PN-IL

Configuring PN-IL with Prime Central (Suite Mode with Local Redundancy)

Configuring and Migrating PN-IL with Prime Central (Suite Mode with Local + Geographical Redundancy) and Configuring and Migrating PN-IL with Prime Central (Suite Mode with Geographical Redundancy Only)

Licenses

In addition to the gateway high availability license, you must purchase a license for each redundant gateway server and a standby license.

 

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