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Red Hat Network Satellite High Availability Guide | Wayman Smith

INTRODUCTION

Combining the high availability features of Red Hat Cluster Suite with the system management capability

of Red Hat Network Satellite allows you effectively manage your client systems with the assurance that

the application will remain active and functioning properly. This intermingling of Red Hat product offerings

is possible because of the Red Hat Enterprise Linux operating system. Red Hat Enterprise Linux serves as

the base platform for which these applications are developed, allowing Red Hat Cluster Suite and Red Hat

Satellite Server to function seamlessly with Red Hat Enterprise Linux. It is the ability to combine products,

as demonstrated in this paper, that allows customers to utilize Red Hat Enterprise Linux and other product

offerings in a unique and fully functional manner.

ABOUT RED HAT CLUSTER SUITE

For applications that require maximum up-time and high availability, Red Hat accommodates with Red Hat

Cluster Suite. With Red Hat Cluster Suite, both standard services (Apache) and custom applications can be

congured to operate in a fail-over conguration that maximizes application up-time and can effectively

migrate applications in the event of hardware failure.

Red Hat Cluster Suite can combine up to 128 systems together in a cluster conguration to provide one or

several applications to clients. To provide a consistent view to client systems, clusters can share resources

(IP address, mount point, etc.) to all nodes participating to the cluster.

ABOUT RED HAT NETWORK SATELLITE

Red Hat Network Satellite provides effective system management of large enterprise environments with

an intuitive, usable, and customizable interface. Normal system administration tasks that require physical

system interaction (logging in, executing command, verifying result, etc.) can be consolidated into one

web interface. Not only can system administration tasks be performed from one interface, but by grouping

systems together, tasks can be performed on a number of systems at once.

The management module provides the user with the ability to organize systems in static and dynamic groups

to perform a wide range of tasks. In addition to system groups, the administrator can create software

channels that supply packages, updates, and errata to all systems subscribed. Software channels can even

be created with the purpose of software lifecycle management by creating development channels with the

latest package updates, testing channels where only specic updates are imported, and production channels

in which the administrator has total control of the packages present in that channel.

The provisioning module allows for extended system management beyond the package level. With

provisioning, the system administrator has the ability to create system snapshots, software prole lists,

kickstarts, and conguration management channels. Systems can now compare, duplicate, and re-provision

all from one common interface. Changes to a system can be rolled back with ease through system snapshots.

The monitoring module provides effective monitoring of systems and applications all from within the

Satellite web interface. By deploying monitoring probes, system performance can now be tracked, and

administrators can be alerted of the latest changes in system status. In addition to standard probes for

temperature, storage space, etc., administrators can also deploy custom probes to meet their specic needs.

What makes Red Hat Network so benecial is that the functionality of these management features is built

into every copy of Red Hat Enterprise Linux, whereas other third-party applications require installation and

conguration that can be lengthy, complicated, and involved. Environment details

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Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 5.1 Bedienungsanleitung Seite 3