If an NSX Manager instance fails, you can restore it from its file-based backup. Prerequisites Verify that you have a valid file-based backup of the failed NSX Manager instance. Verify that you have the SFTP server details: SFTP Server IP SFTP Server Username SFTP Server Password Encryption Password What to read next Procedure Prepare for Restoring an NSX Manager Cluster NodeBefore restoring an NSX Manager node, you must retrieve the NSX Manager build number and deployment details, as well as the credentials from the SDDC Manager inventory. Restore the First Node of a Failed NSX Manager ClusterIf all three NSX Manager nodes in an NSX Manager cluster are in a failed state, you begin the restore process by restoring the first cluster node. Deactivate the NSX Manager ClusterIf two of the three NSX Manager cluster nodes are in a failed state or if you restored the first node of a failed NSX Manager cluster, you must deactivate the cluster. Restore an NSX Manager Node to an Existing NSX Manager ClusterIf only one of the three NSX Manager cluster nodes is in a failed state, you restore the failed node to the existing cluster. If two of the three NSX Manager cluster nodes are in a failed state, you repeat this process for each of the failed nodes. Update or Recreate the VM Anti-Affinity Rule for the NSX Manager Cluster NodesDuring the NSX Manager bring-up process, SDDC Manager creates a VM anti-affinity rule to prevent the VMs of the NSX Manager cluster from running on the same ESXi host. If you redeployed all NSX Manager cluster nodes, you must recreate this rule. If you redeployed one or two nodes of the cluster, you must add the new VMs to the existing rule. Validate the SDDC Manager Inventory StateAfter a successful restore of an NSX Manager cluster, you must verify that the SDDC Manager inventory is consistent with the recovered virtual machines. You run this verification by using the sos tool. Parent topic: File-Based Restore for SDDC Manager, vCenter Server, and NSX-T Data Center
