Unable to perform failover operation "Failed to connect to NFC service at ###host. Host address lookup for server #hostname failed: Name or service not known"

Products

• VMware Live Recovery

Issue/Introduction

Symptoms:

• Unable to perform planned migration of the VM's using SRM.
• Planned migration might fail with the below error: 
  

Validation:

• The following log entries are observed in the /opt/vmware/support/logs/vmware-dr.log file on the Site Recovery Manager (SRM) server:

     -->             group = 'dr.replication.VmProtectionGroup:3963d8a6-####-####-####-68#########d:vm-protection-group-37####8',
     -->             groupName = "###-###-###-####"
     -->             msg = "Some virtual machines in the protection group '###-###-###-####' could not be recovered"
     -->          },
     -->          (dr.fault.NfcConnectFault) {
     -->             faultCause = (vmodl.MethodFault) null,
     -->             faultMessage = <unset>,
     -->             host = "####esxi#####",
     -->             details = "Host address lookup for server ####esxi hostname##### failed: Name or service not known"
     -->             msg = "Failed to connect to NFC service at ####esxi hostname##### Host address lookup for server ####esxi hostname##### failed: Name or service not known"

• From vSphere replication appliance you will not be able to resolve target hostname as shown below

     root [ /home/admin ]# nslookup hostname#
     10.###.###.###
     10.###.###.###

     ** Server can't Hostname#: N####N

Environment

VMware Site Recovery Manager 8.x

VMware Live Site Recovery Manager 9.x

Cause

The vSphere Replication appliance is unable to resolve Hostname/DNS queries, resulting in name resolution failures that impact failover operation.

Resolution

Engage the internal networking team to troubleshoot and remediate the DNS resolution issues affecting the failover operations.