Initiating a Pool Failover

The following procedures can be used to initiate a pool failover for full feature recovery. Voice resiliency will automatically failover and provide users with basic registration and voice routing. The following tasks are required to failover functionality that relies on the SQL back end to the secondary pool such as contact lists, presence, and conferencing. Figure 15.15 provides an overview of the sample configuration used in this scenario.

Caution

Before failing over your Front End pool, check whether the Edge Server is still active in that site. If only the Front End pool is down, but the Edge Server is up and accepting requests, you should adjust the next-hop destination for that Edge Server. Adjust this setting in Topology Builder and publish the topology, or run the Set-CSEdgeServer command in Lync Management Shell.

1. Failing over a Front End Server pool can be done only via the Lync Management Shell and is done using a single command. Run the following command to failover Pool A to Pool B:

Invoke-CSPoolFailover -PoolFQDN lyncpoolA.companyabc.com -DisasterMode -Verbose

2. When Pool A has been restored, initiating a pool failback is also completed in Lync Management Shell using a single command. Run the following command to fail back Pool A:

Invoke-CSPoolFailback -PoolFQDN lyncpoolA.companyabc.com -Verbose

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