Multiple versions of WAS on a same server

[JeanLouis Marechaux]

Hi,
Can I install different versions of WebSphere on 1 server ?
That is to say, can I have a WAS 3.5 and a WAS 4.02 (up and running) on the same AIX machine without any problem ?

[Simon Song]

Choose different Port for confliction, if there is any.
If you choose not to start them in the same time, then there is no big problem.
Another thing to watch is your HTTP config file, you might want to keep copy for each version and use it respectivly.
Hint, in WAS4.0 you can use the embedded HTTP server(which use 9080 port).

[JeanLouis Marechaux]

Of course I will avoid port numbers conflicts.
Thus as far as I understand your answer, I can have 2 Websphere running on the same machine.
It means I can install :
- Was 3.5 and Was 4.01
- or Was 4.01 and Was 4.02
- or Was 4.02 and Was 5

[Balbir Singh]

Hi Bill,
We have 2 installations of WAS 3.5.4 and 1 installation of 4.0.2 running on one box Solaris 5.7 and it works great.

[JeanLouis Marechaux]

Thanks balbir.
For those who are interested in that subject, I've found an official IBM doc :
Co-existence of WebSphere Servers
I did not read it yet, but I guess it answers all the kind of questions we could have about it.
[ March 05, 2002: Message edited by: Bill Bailey ]