Product and Software: This article applies to all Aruba controllers and ArubaOS versions.
The flash that is used in the controller stores lots of information. To speed up the process however, during runtime, some of this information is copied into RAM.
In general, if there is a need to power down controllers and condition permit, it is recommended to do so gracefully by using the 'halt' command rather than just unplugging the power.
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.
The system is halted. Press Reset or turn off power. System halted.