[VMC ON AWS ] Virtual machine shows RPO warning due to lwd filter
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[VMC ON AWS ] Virtual machine shows RPO warning due to lwd filter

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Article ID: 325147

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Updated On:

Products

VMware Cloud on AWS

Issue/Introduction

To explain how to identify the issue and provide a workaround

Symptoms:

Virtual machine shows RPO warning 

 

image.png

 

Hostd.log shows below error

--------

<DATE>T<TIME>Z info hostd[2112365] [Originator@6876 sub=Hbrsvc] Replicator: ReconfigListener triggered forconfig VM 20

<DATE>T<TIME>Z error hostd[2112365] [Originator@6876 sub=Hbrsvc] VM is LWD protected- can't replicate

<DATE>T<TIME>Z error hostd[2112365] [Originator@6876 sub=Hbrsvc] VM is LWD protected- can't replicate

<DATE>T<TIME>Z error hostd[2112365] [Originator@6876 sub=Hbrsvc] VM is LWD protected- can't replicate

<DATE>T<TIME>Z error hostd[2112365] [Originator@6876 sub=Hbrsvc] VM is LWD protected- can't replicate

<DATE>T<TIME>Z info hostd[2129832] [Originator@6876 sub=Vmsvc.vm:/vmfs/volumes/vsan:xxxxxxxx9f4a44ae-9bc4c4ac3d69fc99/2da10b61-xxxx-8072-xxxx-xxxxxx49fca8/vm_name.vmx] Updated active set of monitored objects forVM '20'. total: 9, added: 4, removed: 0

<DATE>T<TIME>Z info hostd[2129832] [Originator@6876 sub=Vimsvc.TaskManager] Task Completed : haTask-20-vim.VirtualMachine.createSnapshot-100972 Status success

<DATE>T<TIME>Z info hostd[2112366] [Originator@6876 sub=Hbrsvc] Replicator: powerstate change VM: 20 Old: 1 New: 1

<DATE>T<TIME>Z info hostd[2112366] [Originator@6876 sub=Hbrsvc] Replicator: PowerOn -> PowerOn transition forVM: (id=20) vm_name

<DATE>T<TIME>Z info hostd[2112366] [Originator@6876 sub=Hbrsvc] Replicator: Poweron forVM: (id=20) vm_name

<DATE>T<TIME>Z error hostd[2112366] [Originator@6876 sub=Hbrsvc] VM is LWD protected- can't replicate

<DATE>T<TIME>Z error hostd[2112366] [Originator@6876 sub=Hbrsvc] Failed to configure replication forVM (id=20): Disk with replication-incompatible type specified (devKey=2000)

<DATE>T<TIME>Z error hostd[2112366] [Originator@6876 sub=Hbrsvc] Invalid Disk config forVM: 20: 

 

You can also verify if the virtual machine has LWD filter by going to vcenter mob

 

VM-> Config->Hardware->Device->VirtualDisk->independentFilters

 

image.png

 


Cause

You cannot protect same virtual machine by HBR and VCDR in 1.16 and 1.18. It is unsupported. LWD IO filter is used by VCDR (High-Frequency Snapshots) and also by Dell PowerProtect (transparent snapshots).

Resolution

SDDC version 1.20 and above supports protecting same virtual machine by VCDR and HBR with certain limitations: https://docs.vmware.com/en/Site-Recovery-Manager/8.7/com.vmware.srm.admin.doc/GUID-F653CFF1-398B-44E7-A939-D6A11664DF16.html


Workaround:

Use either HBR or VCDR
Coexistence is not supported before SDDC 1.20/vSphere 8.0.
As such, VCDR protection should be disabled on the VMs in question. If this has been done, and there are multiple instances, then the script referenced in https://kb.vmware.com/s/article/90283 (lwd-cleanup-util.py) should be used to remove the vmwarelwd filter from the affected VMs.


Additional Information

https://docs.vmware.com/en/VMware-Cloud-Disaster-Recovery/services/vmware-cloud-disaster-recovery/GUID-C3D21347-9DA3-469A-9F06-69A9A6632F04.html#:~:text=High%2Dfrequency%20snapshots%20use%20a,confidentiality%20of%20captured%20disk%20blocks.
https://docs.vmware.com/en/Site-Recovery-Manager/8.6/com.vmware.srm.admin.doc/GUID-F653CFF1-398B-44E7-A939-D6A11664DF16.html
https://docs.vmware.com/en/Site-Recovery-Manager/8.5/com.vmware.srm.admin.doc/GUID-F653CFF1-398B-44E7-A939-D6A11664DF16.html
 


Impact/Risks:

Customers will not be able to replicate the affected virtual machine.