Hi,
    could any one tell the answer  for this. 

you sure, you want to INCREASE it ? or decrease it ?

Thank you joseph for your reply,sorry joseph it's not increase "decrease".

Hello Saravana,

Was shocked by your question initially but thought may be it can be a special requirement :P

For decreasing the server start-up time you can make the initial state of the application installed on that server as "STOP" so that it wont start durning server startup.

You can do so in 2 ways

1.

Applications > Enterprise Applications >

application_name > Target specific application status.

by selecting the server & disabling the auto start this wont start the application durning server startup

2.

Applications > Enterprise Applications >

application_name > Startup behavior.

Launch application before server completes startup

Specifies whether the application must initialize fully before the server starts.

The default setting of false indicates that server startup will not complete until the application starts.

A setting of true informs the product that the application might start on a background thread and thus server startup might continue without waiting for the application to start. Thus, the application might not be ready for use when the application server starts.

This setting applies only if the application is run on a Version 6 application server.


Mind you this is not a best practice but can serve your purpose :-)


Thanks
Sumit Tambe

Which version of application server are using?
If  you are using WAS v7 or 8 you can check

Application servers > "servername"
 Start components as needed 

will be helpful give us more information, like  how much time takes starting process, operating system, maybe JVM memory, cpu  etc

WAS 7 & WAS 8 have awesome options :)