Link to home
Start Free TrialLog in
Avatar of davidwang69
davidwang69

asked on

Work related to upgrade Websphere 6.1 to 8.5

How much work involves to upgrade Websphere application server fron 6.1 to 8.5?

At the moment we have cluster for 2 physical SunOS Solaris 10 boxes.

The components we are using:

Jython script for deploying
Java 1.5
Hibernate
Service Integration bus
JMS
JTA
Servlet
JSP
JDBC connection pool
SSO
TAI - Authenticated by third party

How much work involved? Is upgrading from java 5 to java 6 a big issue?
Avatar of Joseph Gan
Joseph Gan
Flag of Australia image

Actually java upgrade is very simple. You could keep both versions in differnet directories, just change the link, and test it out.
You don't really "upgrade" Websphere AS.  You migrate.  Migration means installing a fresh version of 8.5, and then moving your 6.1 configuration and applications into the 8.5 environment.

Here's the link to "Migrating, coexisting, and interoperating" in the Information Center:

http://pic.dhe.ibm.com/infocenter/wasinfo/v8r5/topic/com.ibm.websphere.base.doc/ae/welc6topmigrating.html

Big, general questions like this often unproductive - for you and for us.  I suggest you do this:

1) Read the portions of the migration documentation for WAS 8.5 that applies to you, and THEN post any specific questions you have.  This way, we know you have some basic background in the required tasks, and we can all just focus on the specific, relevant stuff that is causing you problems.

2) Create a test environment, and perform your upgrade/migration in the test environment.  Post any specific immediate problems or questions that crop up.

Hope that helps.

- Gary
Avatar of davidwang69
davidwang69

ASKER

Thanks Gary! What I need to know is the order of magnitude of the work involving to migrate WAS 6.1 to 8.5. We need to the complexity and difficulty of the work so that we can ask for funding based on this.
(no points please)

davidwang69,

Take on board what Gary has said because the time taken to migrate, is completely dependant on your environment.

You might end up asking a more specific question that involves certain hardware or environment (such as virtualization etc) and doing so will attract the relevant experts to your question.

That way you've got a better chance getting an answer than you do now.  Be sure to include any reference to this question should you open another.

Rob
ASKER CERTIFIED SOLUTION
Avatar of Gary Patterson, CISSP
Gary Patterson, CISSP
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Thanks Gary!