Data Protection and Replication VMware // IT Management Solutions

Data Protection and Replication VMware

The question: Can a vSphere Data Protection (VDP) virtual appliance be successfully recovered from a replicated copy?

“Successfully recovered” means not only recovering the appliance, but being able to restore a VM from that recovered appliance. To test out this scenario, I used vSphere Replication to provide a replicated copy of the VDP virtual appliance. If you follow the vSphere Uptime blog, you may remember that we already discussed replicating VDP with vSphere Replication – here is the link for that post:

As stated in the article above, I do not recommend using VR to replicate VDP. In this case, I simply needed a way to test whether the VDP appliance could be recovered from the replicated copy at a secondary site – more importantly, to see if I could actually use the recovered VDP appliance at the secondary site to recover a VM that was backed up at the primary site.

I deployed a 2TB VDP virtual appliance at the primary site – a total of 13 .vmdk files, thin provisioned. I created a scheduled backup job for one VM. I protected the VDP appliance with VR and set the RPO to 12 hours. This helped me avoid issues with replicating VDP using VR as discussed in that previous post. Once the initial replication was complete, I immediately started my test.

To begin, I powered off the original VDP appliance and recovered the replicated copy. A VM is recovered by VR with the virtual network interface card (vNIC) disconnected as a safety precaution. I enabled the vNIC and powered on the recovered VDP appliance. I was not too surprised when I saw the following message.

Also notice in the background that the Core Services are reporting as “Unrecoverable”. This was almost surely a result of the replicated VDP appliance being a crash-consistent copy – basically as if someone “pulled the plug” on the server, moved it to another location and then turned it back on. VDP does not take kindly to that. Always shut down the guest OS of a VDP appliance gracefully (do not power it off).

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Personal Computer (Netgear)
  • Dual-core Intel 2.1GHz processor and 2GB on-board memory
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  • Consolidate, backup and share files across Windows, Mac, Linux, iOS and Android devices
  • Modern interface for easy cloud-based discovery and file management
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Netgear Netgear ReadyNAS 300 Series 2 TB 2-Bay 2 x 1 TB Enterprise Class HD Network Attached Storage (RN31221E-100NAS)
Personal Computer (Netgear)
  • Dual-core Intel 2.1GHz processor
  • 2-bays for 8TB maximum capacity (expandable to 28TB w/ optional EDA500 chassis)
  • Consolidate, backup and share files across Windows, Mac, Linux, iOS and Android devices
  • Modern interface for easy cloud-based discovery and file management
  • Embedded and add-on applications for iTunes, DLNA, and streaming of music and movies to local or internet-connected devices, including smartphones and tablets
  • On-box data protection including XRAID automatic volume expansion, unlimited snapshots, encryption and real-time anti-virus
  • VM-ready with iSCSI support and vSphere/Hyper-V certification

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