Error: "Failed to sync data on replica consistency group 'CG_NAME'. Failed to created replicated group snapshot. Retry the flow again"

Products

• VMware Live Recovery

Issue/Introduction

Symptoms:

• Array based replication is configured and storage arrays used in the replication are either HPE Alletra 5000 or HPE Alletra 6000.
  
  
• While doing the recovery (Planned migration), the process is failing at "Synchronize storage" steps with the following error.
  
  Failed to sync data on replica consistency group 'CG_NAME'. Failed to created replicated group snapshot. Retry the flow again
  
  

• The recovery completes when the test is re-run. The recovery also completes when selecting Test run or Disaster recovery. The issue is only seen when doing "Planned migration"
  
  
• Following logs can be seen on the "vmware-dr.log"
  
  

  2025-07-10T12:39:36.126+07:00 info vmware-dr[xxxxx] [SRM@xxxxsub=Recovery ctxID=xxxxxxx opID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx-failover:xxxx:xxxx] [failoverMain] Sync failed, bailing out
  2025-07-10T12:39:36.127+07:00 error vmware-dr[xxxxx] [SRM@xxxxsub=Recovery ctxID=xxxxx opID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx-failover:xxxx:xxxx] Recovery stopping due to failure (failover workflow): (dr.storageProvider.fault.StorageDeviceGroupSyncFailed) {
  -->    faultCause = (dr.storage.fault.LocalizableAdapterFault) {
  -->       faultCause = (vmodl.MethodFault) null,
  -->       faultMessage = <unset>,
  -->       code = "xxxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxxxx.xxxx",
  -->       arg = <unset>
  -->       msg = "Failed to created replicated group snapshot.
  --> Retry the flow again."
  -->    },
  -->    faultMessage = <unset>,
  -->    deviceGroup = "CG_NAME"
  -->    msg = ""
  
  2025-07-10T12:39:36.123+07:00 error vmware-dr[xxxxxxx] [SRM@xxxxsub=Recovery ctxID=xxxxxxxxx opID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx-failover:xxxx:xxxx] [xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.syncStorage] Operation sync (offline) did not succeed for all groups and protected vms
  2025-07-10T12:39:36.125+07:00 error vmware-dr[xxxxxx] [SRM@xxxxsub=Recovery ctxID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx-failover:xxxx:xxxx] [failoverMain] Sync reported failure: (dr.storageProvider.fault.StorageDeviceGroupSyncFailed) {
  -->    faultCause = (dr.storage.fault.LocalizableAdapterFault) {
  -->       faultCause = (vmodl.MethodFault) null,
  -->       faultMessage = <unset>,
  -->       code = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxx.xxxx"
  -->       arg = <unset>
  -->       msg = "Failed to created replicated group snapshot.
  --> Retry the flow again."
  -->    },
  -->    faultMessage = <unset>,
  -->    deviceGroup = "CG_NAME"
  -->    msg = ""
  --> }

Environment

vSphere Site Recovery Manager: 8.x

VMware Live Site Recovery 9.x

 

Cause

During "Synchronize storage" for array-based replication, the SRA interacts with the storage array to promote the replicated volumes/LUNs to a read/write state (often creating snapshots or clones to ensure no impact on ongoing replication). 

Since the storage array is unable to sync the data in a timely manner, the recovery failed for the same reason, and the following error message is noticed.

"Failed to sync data on replica consistency group 'CG_NAME'. Failed to created replicated group snapshot. Retry the flow again"

When the flow is retired again, the recovery gets completed because, by then, the sync is complete.

This is a known issue from HPE where the "Run" workflow fails when the "sync" is not completed for VMware App Sync enabled volumes on HPE storage arrays. Please check the following release notes from HPE.

HPE Storage Replication Pack 10.0 for VMware® Site Recovery Manager™ Virtual Appliance Release Notes

Resolution

Rerun the workflow to resolve the issue.