VLSR - vSphere Replication : No host can be used to access datastore path

Products

• VMware Live Recovery

Issue/Introduction

VRMS appliance has been upgraded from version 8.8 to 9.0.2.

All the existing VMs replication failed with  'No host can be used to access datastore path '[] hbrdisk.RDID-a00000-0000-000-.vmdk'. 

Environment

vSphere Replication 8.x
vSphere Replication 9.x

Cause

Embedded VRMS appliance is upgraded to version 9.x

However the VR Add-on appliance has not been upgraded and its on older version 8.x

Resolution

If you have multiple vSphere Replication Servers deployed, repeat the upgrade process for each of them. It's generally recommended to upgrade all vSphere Replication components to the same version.

Follow the below Order while upgrading the vSphere Replication Appliance

1. Upgrade any additional vSphere Replication server deployments on the protected site.
2. Upgrade the vSphere Replication appliance on the protected site.  
3. Upgrade the Platform Services Controller and all components of vCenter Server on the protected site. 
4. Upgrade the ESXi host on the protected site.
5. Upgrade any additional vSphere Replication server deployments on the recovery site. 
6. Upgrade the vSphere Replication appliance on the recovery site.
7. Upgrade the Platform Services Controller and all components of vCenter Server on the recovery site.
8. Upgrade the ESXi host on the recovery site. 
9. Verify the connection between the vSphere Replication sites.
10. Upgrade the virtual hardware of the virtual machines on the ESXi hosts if there is a specific reason for the upgrade.

Additional Information

Carefully read the vSphere Replication 9.0.2 Release Notes for any specific upgrade considerations, known issues, or changes in functionality here