You can change the size of a Network Security or Central Management System instance if you determine that is over-utilized because it is too small, or under-utilized because it is too large.
Important
After you change a Network Security instance type, you must reboot the instance twice for the change to take effect.
Log in to the EC2 console.
Stop the instance:
Select Instances in the navigation pane.
Right-click the instance and select Stop instance.
Change the instance type:
Right-click the instance.
Select Instance settings > Change instance type.
Select the new instance type and click Apply.
Start the instance:
Right-click the instance and select Start instance.
Reboot the instance:
Right-click the instance and select Reboot instance.
Wait for the instance state to be Running.
(Network Security instances only) Reboot the instance again:
Log in to the Network Security CLI.
Reboot the instance:
hostname (config) # reload
Important
This step is mandatory because two reboots are needed for the change to take effect.