Data Protection Health Service - Replication - Cluster Pair Connectivity

Products

• VMware Cloud Foundation
• VMware Live Recovery

Issue/Introduction

This article introduces the new Data Protection Health check 'Replication - Cluster pair connectivity' in vSAN and provides details on why it might report the error and how to fix the error state.

Environment

• VMware Cloud Foundation 9.1
• VMware Live Recovery 9.1

Resolution

Q: What does the 'Replication - Cluster pair connectivity' check do? 

• This check verifies the network connectivity among all cluster pairs for replication.
• It ensures that the source and destination clusters can communicate effectively to maintain data protection standards.

Q: What does it mean when it is in an error state?

• An error state indicates that communication has been lost with the remote vCenter Server.  
• If this issue is not resolved, the immediate risks include:  

1. 1. Loss of Data Protection: Snapshots may be missed, leading to gaps in data recovery points.  
   2. Compliance Failure: Both incoming and outgoing protection groups will become non-compliant with their defined snapshot policies.

Q: How does one troubleshoot and fix the error state?

• To resolve the communication loss, follow the diagnostic steps below in order:

1. 1. Verify Appliance Status:  Confirm that the Protection and Recovery appliance is currently running and accessible via the network.
   2. Test Network Connectivity: Check that the hosts from the cluster have connectivity with the hosts on the target cluster or storage cluster if mounted.
      OR check Failure Reason for the root cause: