Novell PLATESPIN ORCHESTRATE 2.0.2 - HIGH AVAILABILITY CONFIGURATION GUIDE... User manual

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AUTHORIZED DOCUMENTATION
PlateSpin Orchestrate 2.0 High Availability Configuration Guide
PlateSpin ® Orchestrate
2.0.2
June 17, 2009
High Availability Configuration Guide

novdocx (en) 13 May 2009
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4PlateSpin Orchestrate 2.0 High Availability Configuration Guide
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Contents 5
Contents
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About This Guide 7
1 Preparing PlateSpin Orchestrate for High Availability Support 9
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 Installing PlateSpin Orchestrate to a High Availability Environment . . . . . . . . . . . . . . . . . . . . 10
1.2.1 Meeting the Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.2.2 Installing the High Availability Pattern for SLES 10 . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.2.3 Configuring Nodes with Time Synchronization and Installing Heartbeat 2 to Each
Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.2.4 Setting Up OCFS2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.2.5 Installing and Configuring PlateSpin Orchestrate on the First Clustered Node . . . . . 15
1.2.6 Running the High Availability Configuration Script . . . . . . . . . . . . . . . . . . . . . . . . . . 28
1.2.7 Installing and Configuring Orchestrate Server Packages on Other Nodes in the Cluster
for High Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
1.2.8 Creating the Cluster Resource Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.2.9 Testing the Failover of the PlateSpin Orchestrate Server in a Cluster . . . . . . . . . . . 31
1.2.10 Installing and Configuring other PlateSpin Orchestrate Components to the High
Availability Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2 PlateSpin Orchestrate Failover Behaviors in a High Availability Environment 33
2.1 Use Case 1: Orchestrate Server Failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.2 Use Case 2: Agent Behavior at Orchestrate Server Failover and Failback . . . . . . . . . . . . . . . 33
2.3 Use Case 3: VM Builder Behavior at Orchestrate Server Failover and Failback . . . . . . . . . . . 33
2.4 Use Case 4: Monitoring Behavior at Orchestrate Server Failover and Failback . . . . . . . . . . . 34
3 High Availability Best Practices 35
3.1 Jobs Using scheduleSweep() Might Need a Start Constraint . . . . . . . . . . . . . . . . . . . . . . . . . 35

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About This Guide 7
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About This Guide
This High Availability Configuration Guide provides the information for installing and configuring
PlateSpin®Orchestrate 2.0 from Novell®in a high availability environment. The guide provides
information about the components and configuration steps necessary for preparing this environment,
including instructions for configuring the PlateSpin Orchestrate Server in a cluster. The guide also
provides some information regarding the behaviors you can expect from PlateSpin Orchestrate in
various failover scenarios. The guide is organized as follows:
Chapter 1, “Preparing PlateSpin Orchestrate for High Availability Support,” on page 9
Chapter 2, “PlateSpin Orchestrate Failover Behaviors in a High Availability Environment,” on
page 33
Chapter 3, “High Availability Best Practices,” on page 35
Audience
The contents of this guide are of interest to the following individuals:
VM Administrator: A PlateSpin Orchestrate virtual machine (VM) administrator manages the life
cycle of the VMs in the enterprise, including creating, starting, stopping, migrating, and deleting
VMs. For more information about the tasks and tools used by the VM administrator, see the
PlateSpin Orchestrate 2.0 VM Client Guide and Reference.
Orchestrate Administrator: A PlateSpin Orchestrate Administrator deploys jobs, manages users,
and monitors distributed computing resources. Administrators can also create and set policies for
automating the usage of these computing resources. For more information about the tasks and tools
used by the Orchestrate Administrator, see the PlateSpin Orchestrate 2.0 Administrator Reference.
User: The end user of PlateSpin Orchestrate, also called a “Job Manager,” runs and manages jobs
that have been created by a Job Developer and deployed by the administrator. It is also possible that
the end user could be a developer who has created applications to run on distributed computing
resources. For more information about the tasks and tools used by the Job Manager, see the
PlateSpin Orchestrate 2.0 Server Portal Reference.
Job Developer: The developer controsl a self-contained development system where he or she
creates jobs and policies and tests them in a laboratory environment. When the jobs are tested and
proven to function as intended, the developer delivers them to the PlateSpin Orchestrate
administrator. For more information about the tasks and tools used by the job developer, see the
PlateSpin Orchestrate 2.0 Developer Guide and Reference.
Prerequisite Skills
As data center managers or IT or operations administrators, it is assumed that users of the product
have the following background:
General understanding of network operating environments and systems architecture.
Knowledge of basic Linux* shell commands and text editors.

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Feedback
We want to hear your comments and suggestions about this manual and the other documentation
included with this product. Please use the User Comments feature at the bottom of each page of the
online documentation, or go to www.novell.com/documentation/feedback.html (http://
www.novell.com/documentation/feedback.html) and enter your comments there.
Documentation Updates
For the most recent updates of this High Availability Guide, visit the PlateSpin Orchestrate 2. Web
site (http://www.novell.com/documentation/pso_orchestrate20/).
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forward slash, such as Linux or UNIX*, should use forward slashes as required by your software.

Preparing PlateSpin Orchestrate for High Availability Support
1
9
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1
Preparing PlateSpin Orchestrate
for High Availability Support
Ensuring maximum service-level availability and data protection is paramount to enterprise IT
infrastructure. Automated failure detection and recovery prevents downtime, and reduces the
financial and operational impact of outages to the business. Highly available infrastructure is a key
requirement for IT decision makers.
The PlateSpin®Orchestrate Server from Novell®is a critical component of your enterprise
infrastructure. It continuously monitors and manages physical servers and virtual machines (VMs),
and provides high availability for virtual machines by automatically restarting them on alternate
physical servers if the server they are running on becomes unavailable because of a planned or
unplanned outage. Therefore, the Orchestrate Server itself must be highly available.
In PlateSpin Orchestrate, high availability services are provided by a specialized set of applications
that run on SUSE®Linux Enterprise Server (SLES10). Heartbeat 2 is high availability clustering
software that provides multinode failover and service-level health monitoring for Linux-based
services. Heartbeat 2 monitors both physical servers and the services running on them, and
automatically restarts services if they fail.
This guide describes how to configure PlateSpin Orchestrate in a Heartbeat 2 cluster and how to
provide both service-level restart for the Orchestrate Server and failover among the physical servers
of a Linux cluster to ensure that PlateSpin Orchestrate remains available and responsive to the
infrastructure that it manages.
This section includes the following information:
Section 1.1, “Overview,” on page 9
Section 1.2, “Installing PlateSpin Orchestrate to a High Availability Environment,” on page 10
1.1 Overview
The following figure illustrates how PlateSpin Orchestrate is configured for use in a high
availability environment.

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Figure 1-1 The Oirchestrate Server in a Clustered, High Availability Environment
1.2 Installing PlateSpin Orchestrate to a High
Availability Environment
This section includes information to help you install PlateSpin Orchestrate Server components in a
high availability environment. The sequence below is the supported method for configuring this
environment.
1. Section 1.2.1, “Meeting the Prerequisites,” on page 11
2. Section 1.2.2, “Installing the High Availability Pattern for SLES 10,” on page 12
3. Section 1.2.3, “Configuring Nodes with Time Synchronization and Installing Heartbeat 2 to
Each Node,” on page 13
4. Section 1.2.4, “Setting Up OCFS2,” on page 14
5. Section 1.2.5, “Installing and Configuring PlateSpin Orchestrate on the First Clustered Node,”
on page 15
6. Section 1.2.6, “Running the High Availability Configuration Script,” on page 28
7. Section 1.2.8, “Creating the Cluster Resource Group,” on page 29
8. Section 1.2.7, “Installing and Configuring Orchestrate Server Packages on Other Nodes in the
Cluster for High Availability,” on page 28
9. Section 1.2.9, “Testing the Failover of the PlateSpin Orchestrate Server in a Cluster,” on
page 31
10. Section 1.2.10, “Installing and Configuring other PlateSpin Orchestrate Components to the
High Availability Grid,” on page 31