Wireless Access

I have made the ARM-monitoring profile . When we have to select "ALL" for allowed bands for 40mhz channels ?

i am going with default "a-only"  and then assign this profile to the 802.11 a radio. Now on GUI dashboard where it gives the ARM information ? Using ArubaOS 6.2

What do you mean by "Now on GUI dashboard where it gives the ARM information?"

ARM is an automatic, process that changes an AP's power settings, channels to get the besst radio environment for your APs.

What do you want to see? the changes that the ARM process is doing to your APs?

you can show the ARM history for a specific AP by using the following command from the CLI:

show ap arm history {ap-name <ap-name>}|{bssid <bssid>}|{ip-addr <ip-addr>}

Yes Exactly.

The changes that the ARM process is doing to your APs. ok by CLI its good . How to get this information through GUI ?

This information is not available in the Dashboard; only CLI or through AirWave.  

Also, to answer your first question, you typically would not want to enable 40MHz channels on the g radio.  Doing so will bond two channels; with the limited non-overlapping channels on 2.4, this means enabling 40MHz on 2.4 will interfere with at least one other 2.4GHz channel.

For more information see this article:  https://arubanetworkskb.secure.force.com/pkb/articles/HowTo/R-1595