When registering your recovery or witness site, you will also need to provide the token that is generated Register: To add a site to a disaster recovery system, you must first register it with the system by providing information such as Cisco DNA Center uses the witness site to arbitrate between the active and standby sites, allowing only one active site at any given time.įor a description of witness site requirements, see Prerequisites. This scenario can occur in a two-member system when the sites cannot communicate with each other.Įach site believes that it should become active, creating two active sites. In the event that a site fails, this prevents the split brain Site the quorum it needs to carry out disaster recovery tasks. Or separate server, is not involved with the replication of data or managed services. This site, which resides on a virtual machine Witness Site: The third site you configure when setting up your disaster recovery system. By default, it acts as your system's standby Recovery Site: The second site you configure when setting up your disaster recovery system.
#Rf online private server files version 2.2.3 how to#
For information on how to configure the sites in your system, see Configure Disaster Recovery. By default, it operates as the active site that Main Site: The first site you configure when setting up your disaster recovery system. The following terms are key for understanding Cisco DNA Center's disaster recovery implementation: Refer to the topics in this chapter for a description of how to set up and use disaster recovery in your production environment.
Whenever an active site goes down, Cisco DNA Center automatically initiates a failover, completing the tasks necessary to designate the former standby site as the new active Your network while the standby site maintains a continuously updated copy of the active site's data and managed services. Cisco DNA Center's disaster recovery implementation consists of three components: the main site, the recovery site, and the witness site.Īt any given time, the main and recovery sites are operating in either the active or standby role. It responds to a cluster failureīy handing off network management duties to a connected cluster (referred to as a site going forward).
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