Replication error after resizing a large disk on VMware Live Site Recovery

Products

• VMware Live Recovery

Issue/Introduction

Whenever a VMs with large disks (4TB+) is resized the VM goes into an error state for replication. The resize is done correctly (divisible by 512), however in VLSR gets the following error:

A replication error occurred at the vSphere Replication Server for replication 'virepltest01'. Details: 'Error for (datastoreUUID: "vsan:"), (pathname: "-extend.vmdk"): New capacity (322961408) is not greater than original capacity (8598323200); Extending disks'.

This only happens with Enhanced Replication.

Environment

VMware Live Site Recovery 9.x using enhanced replication.

Cause

This issue is cause by the process truncating the disk size which causes the size on destination not to match which causes the issue.

Resolution

If it is required to use enhanced replication use the following process:

1. RECONFIGURE the VM and uncheck the hard disk where the disk is extended beyond 4TB.
2. Once the reconfiguration completes, wait for the replication status to be OK.
3. Remove the VM from replication with "Retain replica disks".
4. Configure the VM for replication and select check box for seeds and validate them.The seed for extended disk should "none".
5. Now the configuration should complete successfully for replication of the VM.

Additional Information

This issue will be fixed in a later release of VMware Live Site Recovery.