migrate from red hat to suse linux enterprise server

Migration from Red Hat to SUSE® Linux Enterprise Server

Olaf KirchDirector Server (OPS)Novell, Inc([email protected])

© Novell, Inc. All rights reserved.2

Overview

Aspects of Migration

Quick Introduction to SUSE® Linux Enterprise Server Expanded Support

Tools to Help with Migration

Aspects of Migration


Stages of a Migration

• Identify your workload

• Deploy servers

– Template based deployment using autoyast

– Image based deployment using ZLM

• Migrate services


Application Support

• Will this application run on SUSE® LinuxEnterprise Server?

– Check our list of certified ISV applications at http://www.novell.com/partners/isv

– Check with your vendor

– Using LSB AppChecker

• What if it won't?


Migrating Data and Configuration

• Feedback we have received so far says “no magic scripting, please!”

• We have created a few migration guides for specific topics:

– Migration overview

– Migration of specific services (Apache2, BIND, NFS, Samba, etc)

– Available from www.novell.com

SUSE® Linux Enterprise ServerExpanded Support


The Problem

Migrations do not happen overnight

Customers need interim support for their existing install

base for the duration of the migration.

However, paying twice is not attractive.


Our Solution

• We provide technical support and maintenance for your existing Red Hat Enterprise Linux install base during your migration

• Patches distributed via Novell® Customer Center/Subscription Management Tool

– For legal reasons, the original RHEL patches have to be rebuilt by us before we can given them to you

• If you need support, you call NTS just like you would for any SUSE® Linux Enterprise Server or PlateSpin® issue

• We call this “Expanded Support”


What Is Covered?

• RHEL 3, RHEL 4 (including RH Cluster Suite), and RHEL 5 (including RH Cluster Suite)

• The program was initially designed for customers who are fully patched when they decide to migrate

– In other words, on 3.9, 4.7 or 5.2– We have started to extend our package base backwards

into history

• If you're on CentOS, we support you as if you're on RHEL

• If you're on Oracle Unbreakable Linux, we may be able to support you - within limits


It's Not a Distro

It's important to understand that we only provide:

Patches

Updates

We do not provide:

Install media

(In particular, we do not support new installations.)


Receiving Patches from Novell®

• How to hook up your Red Hat Enterprise Linux system to the Subscription Management Tool

– Described in Technical Article TID 7004324

– In a nutshell, you just redirect up2date or yum to your local SMT server

• ZENworks® Linux Management can support Red Hat Enterprise Linux clients, too

Using the Analyzer Tools


Identifying What's on Your System

• One of the biggest issues with larger scale migrations is:

– Knowing what's on a system

> In particular, what applications

– Knowing what was changed from the default

• We created an analyzer tool that we hope will be helpful


An Outline of the Analyzer Tools

This is an engineer's tool box, so don't expect mahogany veneer or brass handles

Coming in two flavors: ASCII and web based


Quick Demo of the Analyzer

This is just a quick tour

If you want to know more, or share ideas, find me at the demo counter or around the hallways

Demo Break

LSB AppChecker


What is the LSB App-Checker?

• This tool was created by the Linux Foundation

• Intended to help verify whether an application has a chance of running on a given target system

– Validates the Application Binary Interface (ABI)

– Does not check other aspects like configuration file syntax, or bug for bug compatibility of libraries or system utilities

– But well-written applications shouldn't rely on such things anyway :-)


How to Use the App-Checker

• Download from the Linux Foundation

– http://ldn.linuxfoundation.org/lsb/check-your-app

• Install on the system you want to check

• Connect via web browser, and give it the name of a directory or single binary to check

• Generates a list of platforms with matching ABI


Question and Answers

Any questions?

For further questions, you can reach me at [email protected]

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migrate from red hat to suse linux enterprise server

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