For a faultless failover or failback to the recovery region, verify that your environment fulfills the requirements for a failover or a failback capable SDDC configuration.

Table 1. Failover or Failback Prerequisites

Prerequisite

Value

Compute

The compute infrastructure in the recovery region must mirror the compute infrastructure in the protected region.

Storage

  • The storage configuration and capacity in the recovery region must mirror the storage configuration and capacity in the protected region.

  • Datastore space on the management pod with sufficient capacity must be available for all the virtual machines of vRealize Automation, vRealize Operations Manager, and vRealize Suite Lifecycle Manager.

External services

Provide the following services in the recovery region. See External Service Dependencies from the Planning and Preparation documentation.

  • Active Directory

  • DNS

  • NTP

  • SMTP

  • Syslog

Virtual infrastructure

  • Verify that ESXi, vCenter Server, and NSX for vSphere are mirrored in the protected region.

  • Verify that Site Recovery Manager and vSphere Replication are deployed in both regions and paired.

  • Verify that the NSX load balancer is deployed and configured in both regions.

  • Verify that NSX Edge devices for North-South routing are deployed and configured in both regions.

  • Verify that UDLR is deployed and configured.