vSphere Replication connectivity failure post-vCenter upgrade

Products

• VMware Live Recovery
• VMware vCenter Server

Issue/Introduction

• Following a vCenter Server upgrade, vSphere Replication (VR) appliance may fail to connect to vCenter. The following error is observed in the UI:
  com.vmware.vim.vmomi.core.exception.CertificateValidationException: Server certificate chain is not trusted and thumbprint verification is not configured
  
  
• Additionally, services may fail to start due to exhausted disk space on the partition hosting appliance logs.

Environment

VMware vSphere Replication 9.0.0

Cause

Thumbprint Mismatch: The vCenter Server upgrade regenerated SSL certificates. The VR appliance retains cached, stale thumbprints from previous certificates, breaking the trust relationship.

Storage Exhaustion: Prolonged failure of replication services can lead to an accumulation of log files, causing the /opt/support/logs partition to reach 100% capacity, which prevents necessary configuration updates.

Resolution

1. Access the appliance via SSH.
   
   
2. Check disk space usage using df -h.
   
   
3. If /opt/support/logs is 100% full, clear old log files to free up space.
   
   
4. Perform a Reconfigure as per Site Recovery Manager or vSphere Replication Appliance disconnects after updating vCenter Certificates
   
   
5. If issue remains please contact Broadcom Support for further assistance.