If an NSX Manager or a Global Manager appliance becomes inoperable, or if you want to restore your environment to a previous state, you can restore from a backup. NSX Managers are called Local Managers if they are federated with a Global Manager.

You can restore an NSX-T Data Center configuration back to the state that is captured in any of the backups. While the appliance is inoperable, the data plane is not affected, but you cannot make configuration changes.

Note the following:
  • You must restore the same version of the NSX-T Data Center appliance backup to the new appliances.
  • An NSX Manager or a Global Manager restore can use the same IP or a different IP address.
    • If you are using an NSX Manager or a Global Manager IP address to restore, you must use the same IP address as in the backup.
    • For Managers with different IP addresses, you must configure with FQDN. If you are using an NSX Manager or a Global Manager FQDN to restore, you must use the same FQDN as in the backup. Use only lowercase FQDN for backup and restore.
  • If NSX-T Data Center is part of a VMware Cloud Foundation (VCF) environment, you must use FQDNs only for hostnames.
  • If both the active and standby Global Manager fail, you need to :
Issue Solution Result
Both the active and standby fail.
  1. Delete both active and standby Global Managers. Ensure there are no Global Manager appliances up in any other clusters.
  2. Deploy a new Global Manager with the same IP address/FQDN as old active Global Manager.
  3. Restore the active Global Manager from backup. If any Local Managers are present, they sync to the new active Global Manager.
  4. Deploy a new Global Manager on another site and onboard it to the restore Global Manager.
  • The active Global Manager syncs with any Global Manager on the network.
  • The standby Global Manager syncs with the active Global Manager.
The active Global Manager fails and the standby Global Manager is active. If standby Global Manager is in a good state, it should automatically become the active Global Manager. Standby Global Manager becomes active Global Manager. A new standby Global Manager must be manually added for backup. After the new active Global Manager is online, the Local Manager syncs up and ensures configuration replication.