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Could anyone offer advice on this scenario?

Environment: 2 x ACS 5.6 appliances - Primary ACS Appliance (+Log collector) - Secondary ACS Appliance

Test process 1. Simulated network connection failure on Primary appliance 2. Test switch able to authenticate against Secondary appliance 3. Able to login to Secondary - Read only, no administration function, unable to view logs as log collector also

If administration required what is the best option for the secondary appliance? - Promote to primary? - Request local mode?

Thanks

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Ok after some searching I found cisco doc with a scenario reference:

http://www.cisco.com/c/en/us/td/docs/net_mgmt/cisco_secure_access_control_system/5-6/user/guide/acsuserguide/admin_operations.html#75607

Scenario covered in failover section

"ACS 5.6 allows you to configure multiple ACS instances for a deployment scenario. Each deployment can have one primary and multiple secondary ACS servers.

Scenario: Primary ACS goes down in a Distributed deployment"

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    Nov 18, 2016 at 14:23

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