During the installation process, the product creates a
default application server, named server1. Most installations require
several application servers to handle the application serving needs
of their production environment. You can use the command-line tool
or the administrative console to create additional applications servers.
About this task
To create a new application server,
you can either use the createApplicationServer, createWebServer, or
createGenericServer wsadmin command, or you can use the administrative
console.
If you are migrating from a previous version
of the product, then you can upgrade a portion of the nodes in a cell,
while leaving others at the previous product level. This means that,
for a period of time, you might be managing servers that are running
at two different release levels in the same cell. In this mixed environment,
there are restrictions on what you can do with the servers that are
at the older release level:
- You can only create new server definitions on nodes that are running
on the current release level.
- When you create a new server definition, you must use a server
configuration template, and that template must be created from a server
instance that matches the version of the node on which you are creating
a server.
There
are no restrictions on what you can do with the servers running on
the current release level.
Avoid trouble: ![[aug2010]](../../delta.gif)
If you are using a global resource serialization
(GRS) ring to attach one or more monoplexes to a sysplex environment,
the cell name of any servers running in any of the monoplexes must
be unique within the entire GRS environment. This requirement means
that the cell name of a server running in any of the monoplexes:
- Must be different than the cell name of any servers running in
the sysplex
- Must be different than the cell name of any servers running in
another monoplex that is attached to the sysplex
If you have servers with duplicate cell names within the GRS
environment, WebSphere Application Server cannot differentiate between
the sysplex cell and the monoplex cell, and treats both servers as
part of the same cell, This inaccurate cell association typically
causes unpredictable processing results.
![[aug2010]](../../deltaend.gif)
aug2010
gotcha
You
can use the administrative console to perform the following steps
to create a new application server: