Configure GSLB for disaster recovery 编辑

Disaster recovery capability is critical, because downtime is costly. A Citrix ADC appliance configured for GSLB forwards traffic to the least-loaded or the best-performing data center. This configuration, referred to as an active-active setup, not only improves performance, but also provides immediate disaster recovery by routing traffic to other data centers if a data center that is part of the setup goes down. Alternatively, you can configure an active-standby GSLB setup for disaster recovery only.

Configure GSLB for disaster recovery in an active-standby data center setup

A conventional disaster recovery setup includes an active data center and a standby data center. The standby data center is a remote site. When a failover occurs as a result of a disaster event that causes the primary active data center to be inactive, the standby data center becomes operational.

Configuring disaster recovery in an active-standby data-center setup consists of the following tasks.

• Create the active data center.
  • Add a local GSLB site.
  • Add a GSLB vserver, which represents the active data center.
  • Bind the domain to the GSLB virtual server.
  • Add gslb services and bind the services to active GSLB virtual server.
• Create the standby data center.
  • Add a remote gslb site.
  • Add a gslb vserver, which represents standby data center.
  • Add gslb services which represents standby data center and bind the services to the standby gslb vserver.
  • Designate the standby data center by configuring the standby GSLB virtual server as the backup virtual server for the active GSLB virtual server.

Once you have configured the primary data center, replicate the configuration for the backup data center and designate it as the standby GSLB site by designating a GSLB virtual server at that site as the backup virtual server.

For details on how to configure a basic GSLB setup, see Configuring GSLB Entities Individually.

To designate the standby GSLB site by using the command line interface

At both the active site and the remote site, at the command prompt, type:

set gslb vserver <name> -backupVserver <string>
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