After installing new software, it is crucial to test it to verify that the software is behaving as expected and that no new problems are caused.
Ideally, you would verify basic software operation in two phases, as shown. These verification tests should be run after every software upgrade.
After you reboot the server and before you release it from busy-out:
In the main window of the web administration interface, click the View Process Status link. Verify that all processes are up.
View Summary Status to check server status.
View Software Version to make sure the server is running the new software you just installed.
Execute Pingall to make sure that all parts of the system are responding.
Telnet into the server and verify that you can make a connection.
After you complete the Install New Software wizard:
Interchange the servers to make the newly upgraded standby server the new active server.
From the SAT program, type list configuration all and press Enter. Verify that the software is communicating with all circuit packs (except power supply circuit packs), and that all circuit packs are listed in the reports.
Run ASA and verify that call-processing is working by making some test calls. For example, pick up a phone and verify dial tone, call one telephone from another, then place another call using a trunk access code.
After the software passes initial verification tests:
You must upgrade both servers to run the new software release.
If you have not yet done so, run the Install New Software wizard on the other server. It should now be in standby mode.
See Software installation at a glance for a summary of the complete procedure.