For cluster commands to be issued - you must have installed an active Centralized Management feature key on the appliance(s). Each feature key is serial number specific, and has to be in the backend system in order to validate.
In order to get a feature key assigned to the serial number(s) for the appliance(s) - contact GLO (Global Licensing Operations):
https://tools.cisco.com/SWIFT/LicensingUI/Home
Licensing FAQ
Phone: 1-800-553-2447, opt 3
Request to have a case opened for GLO/Licensing.
Their email directly is: licensing@cisco.com
The proper "part number" is actually the "Product ID" for this feature key. For the ESA, you'll be requesting:
Centralized Management: ESA-CM-LIC=
Once they assign - you'll be able to install this from running 'featurekey', 'activate' and entering in the key provided to you.
Ex.
> activate
Enter feature key directly, or press Enter to return to featurekey menu.
[]>
You'll know it is installed correctly once it is listed in 'featurekey'
> featurekey
Module Quantity Status Remaining Expiration Date
IronPort Image Analysis 1 Active 86 days Mon Dec 9 05:24:55 2013
Centralized Management 1 Active 86 days Mon Dec 9 05:25:23 2013
Symantec Brightmail Anti-Spam 1 Active 86 days Mon Dec 9 05:26:00 2013
IronPort Anti-Spam 1 Active 86 days Mon Dec 9 05:26:15 2013
Outbreak Filters 1 Active 86 days Mon Dec 9 05:31:24 2013
Cloudmark Service Provider Edition 1 Active 86 days Mon Dec 9 05:36:17 2013
Bounce Verification 1 Active 86 days Mon Dec 9 05:23:21 2013
Incoming Mail Handling 1 Active 86 days Mon Dec 9 05:21:56 2013
Intelligent Multi-Scan 1 Active 86 days Mon Dec 9 05:22:16 2013
IronPort Email Encryption 1 Active 86 days Mon Dec 9 05:35:36 2013
RSA Email Data Loss Prevention 1 Active 86 days Mon Dec 9 05:22:27 2013
Sophos Anti-Virus 1 Active 86 days Mon Dec 9 05:35:58 2013
McAfee 1 Active 86 days Mon Dec 9 05:22:58 2013
Hope that information helps and answers!
-Robert
