[VCDR] VCDR replication will fail creating a crash consistent snapshot during stage.

Products

• VMware Live Recovery

Issue/Introduction

Provide steps to resolve the issue

Symptoms:
Replication task will fail on some VMs during the stage, Performing Backup.

DrcMgr.log 

2023-11-07T07:01:06.815+0000 [.drc-backup-restore-threads-4] waitForTask(): task-1771424 createSnapshotTask returning ERROR
2023-11-07T07:01:06.815+0000 [.drc-backup-restore-threads-4] Got an exception while taking crash consistent snapshot.da.core.exception$DaExceptionVadpSnapFailed$Throwable
at com.datrium.vcclient.VimSession.takeSnapshot(VimSession.java:569)
at com.datrium.vcclient.VimClient.lambda$createSnapShot$34(VimClient.java:1745)
at com.datrium.vcclient.VimClient.withSession(VimClient.java:930)
at com.datrium.vcclient.VimClient.createSnapShot(VimClient.java:1745)
at com.datrium.drc.drcAgent.api.DRCAgentSvc$VmBackupVADPJob.vmBackupVADP(DRCAgentSvc.java:5777)
at com.datrium.drc.drcAgent.api.DRCAgentSvc$VmBackupVADPJob.run(DRCAgentSvc.java:5617)
at com.datrium.common.logging.DaCustomThreadPoolFactory$MDCExecutorService.lambda$wrap$0(DaCustomThreadPoolFactory.java:240)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:131)
at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:74)
at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:82)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)\n
2023-11-07T07:01:06.816+0000 [.drc-backup-restore-threads-4] Max retries reached for createSnapShot

/var/log/vmware/vpxd/vpxd.log 

info vpxd[24165] [Originator@6876 sub=Default opID=6e16ad5d] [VpxLRO] – ERROR task-1771393 – vm-649936 – vim.VirtualMachine.createSnapshot: vim.fault.SnapshotIncompatibleDeviceInVm:
--> Result:
--> (vim.fault.SnapshotIncompatibleDeviceInVm) {
-->    faultCause = (vmodl.MethodFault) null,
-->    faultMessage = <unset>,
-->    fault = (vim.fault.SharedBusControllerNotSupported)

{ -->       faultCause = (vmodl.MethodFault) null, -->       faultMessage = <unset>, -->       device = "", -->       reason = <unset> -->       msg = "" -->    }

-->    msg = ""
--> }
--> Args:
-->
--> Arg name:

Cause

This issue occurs if the VMs in a protection group are configured with SCSI Bus Sharing or Pass through devices. These configurations are not supported by VCDR recovery.

Resolution

VMware Cloud Disaster Recover does not support the following configurations on the VMs in a Protection Group 
 

• VMs created by vSphere vApp(s)
• Fault Tolerant VMs
• Shared disks
• VMs that use Integrated Drive Electronics (IDE) disks for storage
• Independent disks and Raw Device Mappings (RDM)
• Linked and instant VM clones

For additional Caveats and Limitations refer VCDR Doc here   

Additional Information

Impact/Risks:
Unable to replicate VMs in the protection group