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17-11
User Guide for Cisco Secure Access Control System 5.4
OL-26225-01
Chapter 17 Configuring System Operations
Editing Instances
Step 2 From the Primary Instance table, click the primary instance that you want to modify, or check the Name
check box and click Edit.
Step 3 Complete the fields in the Distributed System Management Properties page as described inTable 17-5:
Activate If the option to auto-activate the newly registered secondary instance is disabled, the secondary is
initially placed in the inactive state. Click Activate to activate these inactive secondary instances.
Deregister
1
Disconnects the secondary instance from the primary instance. Stops the secondary instance from
receiving configuration updates from the primary instance. Deregistration restarts the deregistered
node.
When full replication is in progress on an instance, do not attempt to deregister that instance. Wait
until the full replication is complete and the secondary instance is restarted before you deregister
the secondary instance.
Promote Requests to promote a secondary instance to the primary instance. All updates to the current
primary instance are stopped so that all replication updates can complete. The secondary instance
gets primary control of the configuration when the replication updates complete.
The secondary instance must be active before you can promote it to the primary instance.
Full Replication Replicates the primary instance’s database configuration for the secondary instance. ACS is
restarted.
When full replication is in progress on an instance, do not attempt to deregister that instance. Wait
until the full replication is complete and the secondary instance is restarted before you deregister
the secondary instance.
Backup Select the secondary instance that you want to back up and click this button to take a backup. See
Backing Up Primary and Secondary Instances, page 17-8 for more information.
1. Deregistration restarts the deregistered node, but does not restart ACS. Registration and Full Replication restart ACS because the database is replaced.
Table 17-5 Distributed System Management Properties Page
Option Description
Instance Data
Hostname Name of the ACS host machine.
Launch Session for Local
GUI
Click this button to launch a new instance of the selected ACS machine. You are required to log
in to the primary or secondary instance.
This option appears only when you view or edit another instance.
Role Specifies a primary or secondary instance or Local.
IP Address IP address of the primary or secondary instance.
Port Port for Management service.
MAC Address MAC address for the instance.
Description Description of the primary or secondary instance.
Check Secondary Every
(only applies for primary
instance)
Rate at which the primary instance sends a heartbeat status request to the secondary instance. The
default value is 60 seconds. The minimum value is 30 seconds and the maximum value is 30
minutes.
Table 17-4 Distributed System Management Page (continued)
Option Description