Product and Software: This article applies to all Aruba controllers and ArubaOS versions.
Immediate shutdown or resetting the controller may cause problems for the processes that run in the background. The flash that is used in the controller stores a large amount of information. To speed up the process, however, during runtime, some of this information is copied into RAM.
In general, you must power down controllers and conditions permit, power down gracefully by using the 'halt' command rather than just unplugging the power.
(Aruba) #halt
WARNING: THIS COMMAND WILL TERMINATE ALL WEBUI, TELNET AND SSH SESSIONS.
Please only execute this command from the local console.
Do you really want to halt the system(y/n): y
System will now halt! Please wait...
Shutdown processing started Syncing data....done.
The system is going down NOW !!Sending SIGTERM to all processes.Sending SIGKILL to all processes.
Note: Wait until this message is returned:
The system is halted. Press Reset or turn off power. System halted.